Николаев Семён

#include<iostream>
#include<cmath>

using namespace std;

int fmax(int a, int b, int c) {
    int max = 0;
    if (a > max)
        max = a;
    if (b > max)
        max = b;
    if (c > max)
        max = c;
    return max;
}

int main() {

    int r, g, b;
    cin >> r >> g >> b;

    int a = fmax(r, g, b);
    double k = 1 - (a / 255.);
    if (abs(k - 1) < 0.0000000001)
        cout << "0 " << "0 " << "1 " << "0";
    else {
        double c = (1 - r / 255. - k) / (1 - k);
        double m = (1 - g / 255. - k) / (1 - k);
        double y = (1 - b / 255. - k) / (1 - k);


        cout.precision(4);
        cout << c << " " << m << " " << y << " " << k;
    }
}