diff --git a/21 Number game in Python b/21 Number game in Python
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+# Python code to play 21 Number game
+
+# returns the nearest multiple to 4
+def nearestMultiple(num):
+	if num >= 4:
+		near = num + (4 - (num % 4))
+	else:
+		near = 4
+	return near
+
+def lose1():
+	print ("\n\nYOU LOSE !")
+	print("Better luck next time !")
+	exit(0)
+	
+# checks whether the numbers are consecutive
+def check(xyz):
+	i = 1
+	while i<len(xyz):
+		if (xyz[i]-xyz[i-1])!= 1:
+			return False
+		i = i + 1
+	return True
+
+# starts the game
+def start1():
+	xyz = []
+	last = 0
+	while True:
+		print ("Enter 'F' to take the first chance.")
+		print("Enter 'S' to take the second chance.")
+		chance = input('> ')
+		
+		# player takes the first chance
+		if chance == "F":
+			while True:
+				if last == 20:
+					lose1()
+				else:
+					print ("\nYour Turn.")
+					print ("\nHow many numbers do you wish to enter?")
+					inp = int(input('> '))
+					
+					if inp > 0 and inp <= 3:
+						comp = 4 - inp
+					else:
+						print ("Wrong input. You are disqualified from the game.")
+						lose1()
+			
+					i, j = 1, 1
+
+					print ("Now enter the values")
+					while i <= inp:
+						a = input('> ')
+						a = int(a)
+						xyz.append(a)
+						i = i + 1
+					
+					# store the last element of xyz.
+					last = xyz[-1] 
+					
+					# checks whether the input 
+					# numbers are consecutive
+					if check(xyz) == True: 
+						if last == 21:
+							lose1()
+							
+						else:
+							#"Computer's turn."
+							while j <= comp:
+								xyz.append(last + j)
+								j = j + 1
+							print ("Order of inputs after computer's turn is: ")
+							print (xyz)
+							last = xyz[-1]
+					else:
+						print ("\nYou did not input consecutive integers.")
+						lose1()
+						
+		# player takes the second chance
+		elif chance == "S":
+			comp = 1
+			last = 0
+			while last < 20:
+				#"Computer's turn"
+				j = 1
+				while j <= comp:
+					xyz.append(last + j)
+					j = j + 1
+				print ("Order of inputs after computer's turn is:")
+				print (xyz)
+				if xyz[-1] == 20:
+					lose1()
+					
+				else:
+					print ("\nYour turn.")
+					print ("\nHow many numbers do you wish to enter?")
+					inp = input('> ')
+					inp = int(inp)
+					i = 1
+					print ("Enter your values")
+					while i <= inp:
+						xyz.append(int(input('> ')))
+						i = i + 1
+					last = xyz[-1]
+					if check(xyz) == True:
+						# print (xyz)
+						near = nearestMultiple(last)
+						comp = near - last
+						if comp == 4:
+							comp = 3
+						else:
+							comp = comp
+					else:
+						# if inputs are not consecutive
+						# automatically disqualified
+						print ("\nYou did not input consecutive integers.")
+						# print ("You are disqualified from the game.")
+						lose1()
+			print ("\n\nCONGRATULATIONS !!!")
+			print ("YOU WON !")
+			exit(0)
+			
+		else:
+			print ("wrong choice")
+						
+		
+game = True
+while game == True:
+		print ("Player 2 is Computer.")
+		print("Do you want to play the 21 number game? (Yes / No)")
+		ans = input('> ')
+		if ans =='Yes':
+			start1()
+		else:
+			print ("Do you want quit the game?(yes / no)")
+			nex = input('> ')
+			if nex == "yes":
+				print ("You are quitting the game...")
+				exit(0)
+			elif nex == "no":
+				print ("Continuing...")
+			else:
+				print ("Wrong choice")
+