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day19-input.txt
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+---+ +-------------------------------+ +---+ +---------+ +---------------------------|-------------------------------------------------------------------------+ +-----+
| | | | | | | | | | | | |
| +-----|---------+ +---------------------|---|-----|-------------|---------------------------|-------------------------------------------------------------------------+ | +-------+
| | | | | | | | | | | | |
| +---+ +---------+ | | | | +-------------------------------------------------------------------------------------------------------+ A-+ +-----------------------+
| | | | | | | | | | | | | | | | | |
| | | | | | +---------------------|-----|---------|-----------+ | +-----------------------------------------------+ |
| | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | +---------|-----------|-------------------|---------------------|-----------------------------------------|-----------|-------------+
| R | | | | | | | | | | | | | | | | | | | |
| | | | +-------|---------------------------|-------------|-----------|-------------------|---------------------|-------------+ +-----------|-----|-----|-----+ +-------+
| | | | | | | | | | | | | | | | | | | | | | | |
| +---------|-------+ | | | | | +-|---------+ +-|---|-----+ | +-----------------|---------------------|-------+ | | +-|-----|-|---|-----------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+-------------------|-----|-|-|-------|-------|---------|-----+ | | | | | | +-----------------|---------------------------------------------|---------|---------|---|-----------+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-----+ +---|---|-----|---|-----------------|-----------------|-----------|-|-------------------------------------+ | | | +---------|-|---+ +-|---------------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-+ | | | | | | | | | | | | | +---------------------|-----------------------------|-----|-------------------|-|---+ | |
| | | | | | | | | | | | | | | | | | | | | | | |
| +---------------------+ | | | | | | | | | +-|-----------------------------------------|-------|-------------------------|-|-------|-------+ +-+
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +---------+ | | | | | | | | | | | | | | | | | | | | | | +---------------+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+---+ | | | +-+ | | | | +-----+ | +-|---------------+ | | +-|-------|-------------------|-+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | W | |
+-------|-|-|-|-+ | | | | | +-------------|-------------------|-|-|-------|-|-------------------------------------|-----------|-----------------+ +-|-----------|-----------------+ |
| | | | | | | | | | | | | | | | | | | | | | | H | | | | | | | | | | | |
| | +-|-------+ | | | | | | | | | | | | | | +---------|---------------------|-------|-----|---------------------------------|-|---------------+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-----|-|---+ | | | +---+ | | +-|-----------------------|-----|-------+ | | | | | | | | | | +-|-|-------------+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | +-------------------|-------|-----|---------+ | | +---------------+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | +-+ | | | | | | | | +-------------|-----------------|-+ | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | +-----------------------------------------|-----|-------|---------|---------|-----------+ | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|-|-|-+ | | | | +-|-|-------|-------------------------------|-|---|-----|-|---------|---------|-----------|-------|-+ | | | | | | +-+ | | | | +-+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|---------|-+ | +---------|-|---|-+ | | +-------+ +-------|-|---------|---------------------|-----------|-----------------------------------|---+ | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------------------------------------------|-----|-|-------|---+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | +---------|---|-----|-------------------------------------|-----------|---------------------|-|---|-|---------|-----|---------------|-----+ | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-----|-|---|-|-|---|-|-----+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|-|-|---|---|-|-|-------+ | | | | | +-----+ | | | | | | +---------------------+ | | | | | | | +-------------|-|---------|---|-----------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | +-----------|-----------------------|-|---------------------|---------------------|-----------+ +-----------|---------+ | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+-------|-|-|-----+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-|---|-+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-------+ | | | | | | | | | +---------|-------------------------------+ | | | | | | | | | | | | | | | | | | | | | | | +---+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|-|-----|---|-|-|-|-------------------------------------|-|-------------------------------|---------|-|-|-----|-|-------------+ | | | | | | | +-------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+---------|---+ | | | | | | | +-----+ | | | | | | | +-|-|-------------------|---------|---|-----|---|-----|-----------------------+ | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | +---|---------------------------------------|---+ | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-----|-|---------|-|---------------|-----------------------|-|---------|-|-|-------------------|-+ | | | | | | | | | | | | | | | | | | +-+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+---------------|-----|---------------|---|---|---------+ +-----+ | | | +-----|-|-------|-+ +---------------|-|-|---|-|---------|---------------------|-|-----------|-----|-----|---|-+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-|-------|-|---|---|-------|---------|-------------------|-|---------|-------------------------------|-----|-|-|-|---------------------------|---------|-----|---|-----|-+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-|---|---|-|-+ | | | +-----|-|-------|---------------------|-+ | | | +-----------|-------|---------|-|-----|-|-------|-------+ | | +-+ | +-|-|-----|-+ | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +-+ | | | | | | | | | | | | | | | | +-----|-----------------|-|---|-----|-----------|-----+ | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | U | | | | | | |
| | | | | | | | | | | | | +-----|-|-------|-----------|-----------------------------------------|---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | +-----|-|---|-|---|-----|-----------|-----|-------|---|-|---|-|-|-----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|---|-|-----------|---|-|-|-------|-|-----|-------|-------------------|----------------E--+ | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +-------|---|---------------|-------|-----|---+ | | | +-|-------|---|-|-|---|-|-|-----------------------------|---|-----|-----|-------+ +---|-------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +---|---|-|-|-|---|---|-----|---------------------------|-|-------|---|---+ | +---|---|-|-------|-----|-|-+ | | | +-----+ | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|-|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-|-----------------------------|-|-|---------------|-------|-----|---+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | +-----------------|-----------|-----------|-----------------------|-------|-|-|-----------------------+ | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +---------------|-------------|---|---|-|---------|-|---------------|---|-|-----|-------------------|-----------|---|---|---------|-+ +-|-+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|-|-----|-----|---|---|---------|-|-----------------|---------------|-------------|-------------|-|---|---------|-----|-----------------------------+ | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------|-----|-----|-----------------------------------|---|-|---|---------|-+ | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | +---|---------|-|-|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-|---|---+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | +-|-----|---|-|---|---|-|---------------+ | | +-|-------|-------|-----------+ +-|-|-|-|---|-------|-|---|---------------------|-------+ | | +---+ | | +-|-----|---+ | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-----------|-|-|---------|-|---|---|-----|-|---------------|-----+ | | | | | +-|-|-----+ +-|-|-|---|-|---+ | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----|-+ | +-------+ | | +-----------|-|-------------------------+ | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | +---|---------+ | | +-|-|-|-------|-----|-|-----------|-------------|-|---|---|-----+ | | | | | | | | | | | | +---|---|-+ | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | N | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | +-|-----|---|-+ | | +-----|---|-------------|-|-------+ | | +---|---|-|-----|-----------------------------|---|-|--D|---|-----|---+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +---|---|-|-----|-|-|-|-----|-|---|-----------|-|-----|-|-----|-|-----|---|-------|---------------|-------|-|---------|-------------------|---------|-----|---|---|-|---|-----|---|-+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | +-------|-|-----|-|-|-----------|-|-+ | | | | | | | | | | +-------|---------+ | | | | | | +-------+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-------|---+ | | | | | | | | | | | | | | | | | | | | | | | +-+ +-|-----|-----|---+ | | | | | | +-------|---------|---------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +---|-------+ | +-----------|-------|-----+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|---+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +-|-|-----|-------|-|-|-----|-----------|-+ | | | | | | | | +-|-------+ | | +---------------+ | +-+ | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|-----------|-------|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|-------------|---+ | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|-------|-----|---|-------------|-|---|---|---------|---|---|-|-----+ | | +---------|-|---|-|-----|-------------------|-------|-------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | +---|-|-----|---------------|-|---------|---|---|---------|-|---------------------|-----|---|-------+ | | | | | | +-|---|-+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----|-------+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | +-|-------|---|---|---|---------|-----+ | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +-|-+ | | | | | | | | | | | | | | | | | | | | | | | | +-----------------|-----|---------|-----------------------------|---------|-------------|---|-|---|-|-----+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | +-----------------|-------------|---------|-----+ | | +---------------|---|---|-+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | +-------------|-|-|-----|---|---|-|-|---------|---|---------|---------------------------|-----|-----|---------|---------|-------------------|---------|---------+ | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | +---------|-+ | +-----|-|-|---|-|-|---+ | | | | | | | | +---------------------------|-------------------|-------------+ +---------|----------Y--+ | | | | +---|-+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +-|---|-----------|---------|---------|---|---------|---|-----+ +---|-|-----|-----|---------+ | | +-----------------------------+ | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | +-----|-|-----|---|-------|-|---|-----|-----------------------------|---------------------------------|---|-------------------------------------|-----+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | +-|---|-------|-------|-|-----|---|-----|---------+ | | | | +-------------+ | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|---|-------|-------|---|-----|-|-------|-|-|-|---------------|-|-----|-----|---------------|-|-----------|-------|-----------|-------------|---|-----------|-------------------------------+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +---------|-------|---|-|-|-|---------|-|-----|---|-----|---|---|-----------------|---|-------------|---------------+ | | | | +-+ | | | +-+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|-|---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|-----------------|---------------------------------------------|---+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +---+ | | | | +---+ | | | | | | | +---|-----------+ | | | | +-+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | +-|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----------|-|---+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|---|-------------|---|---|-|---------------+ | | | | | | | | | | | | | | | +---|-----------------|-----+ | | |
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| | | | +-------|-----|-|-|---|-|---+ +---|-|-------|-|---------|-|-----------|---------------|-|---+ | | | | | | | | +---|-------|-+
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| +-+ | | +-|-----------|-|-----|---|---------+ | | | | | | | | | | | | | | | | +---------------|-----------------|-+ | | |
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| | | | | | | | | | | | | +---|-|---|-|---|-----|-|-----------------------|---|-----|-------|-------|-----------|---------|-------------------|-----+ | | | |
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| | | | | | | | | | | | | | | | | +-----------------------------------|-----------+ | | | | | | | | | | |
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| | | | | +-----|-----|---|O------------------|-|---|-|---+ | | | | | | | | | | | | | | | | | | |
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| | | +-|---------------|-----|---|-----------|-----|-|---+ | | | | | | | | | | | | | +-----|-----|-----------+ +-----+ |
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| | +-----------|-----+ | | | | | | | | | | +-----------|-----------|-------------------------|-----------------------------|-----------------|-------------------------+
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| | +-------------|-------|-----|-|-|-----------------|-|-----------------------------------|-----|---|-----|---------|-----------------------------|-----------|---------------------+
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| | | | | | | | | | | +-----------------+ | | | | | | | | | | | | | | |
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| | | +-+ +-----+ +---------|-----|-------------------|-----------|-----------------+ | | | | | | | | | | | | | |
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| | | | | +-----------+ | | +-|-|-----------|-----+ | | | | | | | | | | | | | | | | | | |
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| | | | | +-|-+ | +-|-+ | | | | | | | | | | | | | | | | | +---|-----+ | | |
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| | | | | | | | +-----+ +---------|-----------|-------|---------|-------+ | | | +-+ | +-------------------------|-------------|---|-----------|---------------------+
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| | | | | | | | | | | | | | +-----+ | | | | | | | | | | | | | |
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| +-+ | | | +-----------------------|-----------|-------|---------|-------+ +-|---+ +-----------+ | | | +-------------------------|-+ | | |
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| | | +---|-------|-+ | | | | | | | | | | | | | | | | | | | |
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+-------|-------------|-------------|-------------------|---------|---------+ | | | +-----------|-----+ | | | | | | |
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+-|-+ | +---|-+ | | +-----------------|---------+ | +---------+ | | | | | | | | |
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| +---+ +---------+ | +---------------------------------------+ | +---------------+ | | | | | | | +-------------------+
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+-+ +-----+ +---------------------|---------|-----------+ +-------------------|-------------------------------+ +-+ | | |
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| +-------------------+ | | +-----------+ |
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+-------------------------------------------------------+ +---------------------------------+ +-------------------------------------------------------+