#
# write a miropython scripts to design a calculator having following the operation + - * / // %
# on two numbers use the input functions

a = int(input("Enter the value of a: "))
b = int(input("Enter the value of b: "))
operation = input("Enter the operation: ")

# result = None

# if operation == "+":
#     result = a + b
# elif operation == "-":
#     result = a - b
# elif operation == "*":
#     result = a * b
# elif operation == "/":
#     result = a / b
# elif operation == "//":
#     result = a // b
# elif operation == "%":
#     result = a % b
# else:
#     print("Invalid operation")

# if result is not None:
#     print(f"The result of {a} {operation} {b} is: {result}")


def addition(a,b):
    return a+b

def sub(a,b):
    return a-b

def multi(a,b):
    return a*b

def divi(a,b):
    return a/b

def modules(a,b):
    return a%b

def dd(a,b):
    return a//b

if operation == "+":
    addition
elif operation == "-":
    sub
elif operation == "*":
     multi
elif operation == "/":
    divi
elif operation == "//":
    dd
elif operation == "%":
    modules
else:
    print("Invalid operation")