#include <bits/stdc++.h>

using namespace std;

typedef double db;

db h, r, da, dw;

db calc(db t) {
    db t1 = t * t / 2 * dw + (h * h - t * t) / 2 * da;
    db t2 = t * dw + (h - t) * da;
    return t1 / t2;
}

int main(void) {
    scanf("%lf%lf%lf%lf", &h, &r, &da, &dw);
    printf("%lf %lf\n", calc(0), calc(h));
    double t1 = h * h * da * da / (dw - da) / (dw - da);
    double t2 = h * h * da / (dw - da);
    double t3 = sqrt(t1 + t2);
    double t4 = h * da / (dw - da);
    double t = t3 - t4;
    printf("%.10f\n", t);
    // db le = 0.0, ri = r, ans = -1;
    // for (int i = 1; i <= 10; ++i) {
    //     ans = (le + ri) / 2;
    //     db step = (ri - le) / 3;
    //     db t1 = le + step, t2 = ri - step;
    //     db num1 = calc(t1), num2 = calc(t2);
    //     printf("t1 = %lf, t2 = %lf, num1 = %lf, num2 = %lf\n", t1, t2, num1,
    //            num2);
    //     if (num1 < num2) {
    //         ri = t2;
    //     } else {
    //         le = t1;
    //     }
    // }
    // printf("%.10f\n", ans);
    return 0;
}