34 class2_Set(Union,Intersection,Difference).py

num1 = {1,2,3,4,5}
num2 = {4,5,6,7,8,9}

#Union (all):
print(num1 | num2)

#Intersection (only commons):
print(num1 & num2)

#Difference [num1 - (common from num2)] :
print(num1 - num2)