#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
    float a;
    float b;
     float c;
    cout << "Unesi prvi broj" <<endl;
    cin >> a;
    cout << "Unesi drugi broj"<<endl;
    cin >> b;
    c = (int)a % (int)b;
    cout << "Rezultat" << setprecision(11) << (double)c <<endl;
    system("pause");
    return 0;

}