num1 = float (input ("Enter first number: "))
op = input ("Enter operator: ")
num2 = float (input ("Enter second number: "))
if op == "+":
    print(num1+num2)
elif op=="-":
    print(num1-num2)
elif op=="/":
    print(num1/num2)
elif op=="*":
    print(num1*num2)
else:
    print("Invalid operation")
