Calculator

while True:
    operator=input("Would you like to add, subtract, divide or multiply or exit? Please choose one. ")

    if operator=="add":
        num1=int(input("What is the first number you would like to add? "))
        num2=int(input("What is the second number you would like to add? "))
        total=num1+num2
    elif operator=="subtract":
        num1=int(input("What number would you like to subtract from? "))
        num2=int(input("Which number would you like to subtract? "))
        total=num1-num2
    elif operator=="divide":
        num1=int(input("What number would you like to divide? "))
        num2=int(input("Please input the number you would like to divide by "))
        total=num1/num2
    elif operator=="multiply":
        num1=int(input("Please input the first number you would like to multiply "))
        num2=int(input("Please input the second number you would like to multiply "))
        total=num1*num2
    elif operator=="exit":
        break
    else:
        print ("The option you have chosen is not valid.")
        continue
    print ("The total is ",total)