#include <iostream>

using namespace std;

int main()
{
    cout << "Enter A and B: ";
    double a, b;
    cin >> a >> b;
    cout << "A + B = " << a + b << '\n'
     << "A - B = " << a - b << '\n'
     <<"A * B = " << a * b << '\n'
     << "A / B = " << a / b << '\n';
     if(a>b){
        cerr<<"A-max   "<<a<<'\n';
     }else{
        cerr<<"B-max   "<<b<<'\n';

     if (b>a){
        cerr<< "A - min";
     }else{
        cerr<< "B- min";
     }

}
}