#include <iostream>
using namespace std;

int main() {
    float a, b;
    char operation;

    cout << "Enter 1st number: ";
    cin >> a;
    cout << "Enter 2nd number: ";
    cin >> b;
    cout << "Enter operation: ";
    cin >> operation;

    switch (operation) {
        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 << "Error! There is no such operation!";
    }
    return 0;
}