second

#include <iostream>
using namespace std;

int main() {
    int a, b, c, d;
    cout << "Ener x1, y1\n";
    cin >> a >> b;
    cout << "Ener x2, y2\n";
    cin >> c >> d;
    if ((a + b) % 2 == (c + d) % 2)
        cout << "same color";
    else
        cout << "different color";
    return 0;
}