num1=float(input("Enter first number: "))
op=input("Enter the oparator: ")
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 OPERATOR")