#calculatorIf.py
#simple arithmetic expression of integer operator (+ - * / %) integer

result = float('inf')   #largest possible numeric value

num1 = eval(input("Enter number: "))
op = input("Enter operation symbol (+ - * / %): ")
num2 = eval(input("Enter number: "))

  #multiway branch
if op == "+":
    result = num1 + num2
elif op == "-":
    result = num1 - num2
elif op == "*":
    result = num1 * num2
elif op == "/":
    result = num1 / num2
elif op == "%":
    result = num1 % num2
else:
    print("Invalid operator!")

if result != float('inf'):    #was changed because was valid op
    print("=", result)