a=int(input("Enter value of first variable: "))
b=int(input("Enter value of second variable: "))
a=a+b
b=a-b
a=a-b
print("a is:",a," b is:",b)

#OUTPUT:-
#Enter value of first variable: 5 
#Enter value of second variable: 7 
#a is: 7 b is: 5