#include <iostream>

using namespace std;

int main ()

{

char op;

    float a, b;


    cout << "Enter operator : +, -, *, /: ";

    cin >> op;


    cout << "Enter first number:";cin >> a;

    cout << "Enter second number:";cin >>b;


    switch(op) {

        case '+':

            cout << a << " + " << b << " = " << a + b;

            break;


        case '-':

            cout << a << " - " << b << " = " << a - b;

            break;


        case '*':

            cout << a << " * " << b << " = " << a * b;

            break;


        case '/':

            cout << a << " / " << b << " = " << a / b;

            break;


        default:

        cout << "wrong input \nOperator is not correct"; break;

    }

           

return 0;

}