#include <iostream>
#include <cmath>
using namespace std;
int main()
{
int m_s = 0;
float k_h = 0;
cout << "Podaj liczbe w m/s (typu intiger/ca?kowity): ";
cin >> m_s;
k_h = m_s * 3.6;
k_h = (int)round(k_h);
cout << m_s << "m/s = " << k_h << "km/h" << endl;
return 0;
}
