a = int(input("Enter first number: "))
b = int(input("Enter second number: "))
temp_1 = a
a = b
b = temp_1
print("First number: ", a)
print("Second number: ", b)
a = int(input("Enter first number: "))
b = int(input("Enter second number: "))
temp_1 = a
a = b
b = temp_1
print("First number: ", a)
print("Second number: ", b)