#include<bits/stdc++.h>
using namespace std;
void esraa()
{
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
#endif
}
int main(){
    //esraa();
    cout << "Enter two numbers " ;
    double a , b ;
    cin >> a >> b;
    cout << "Enter operation";
    char operation;
    cin >> operation;
   //cin >> a >> b >> operation;
    if(operation == '+') cout << "a + b =  "<< a + b << '\n';
    else if(operation == '-') cout << "a - b = " << a - b << '\n';
    else if(operation == '/') cout << "a / b = " << a / b << '\n';
    else if(operation == '*') cout << "a * b = " << a * b << '\n';
    return 0;
}