#include"bits/stdc++.h"
using namespace std;
#define REP(k,m,n) for(int (k)=(m);(k)<(n);(k)++)
#define rep(i,n) REP((i),0,(n))
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using tp3 = tuple<int, int, int>;
using Mat = vector<vector<ll>>;
constexpr int INF = 1 << 28;
constexpr ll INFL = 1ll << 60;
constexpr int dh[4] = { 0,1,0,-1 };
constexpr int dw[4] = { -1,0,1,0 };
bool isin(const int H, const int W, const int h, const int w) {
    return 0 <= h && h < H && 0 <= w && w < W;
}
// ============ template finished ============

int main()
{
    ll a, b, c, d;
    cin >> a >> b >> c >> d;
    ll D = (a - c)*(a - c) - 8 * (b - d);
    if (D < 0)cout << "No" << endl;
    else if (D == 0)cout << "Yes" << endl;
    else {
        double x1 = ((c - a) - sqrt(D)) / 4;
        double x2 = ((c - a) + sqrt(D)) / 4;
        auto f = [&](double x) {
            return x * x + a * x + b;
        };
        double dy = f(x2) - f(x1);
        double dx = x2 - x1;
        double p = dy / dx;
        double q = f(x1) - p * x1;
        cout << fixed << setprecision(12) << p << " " << q << endl;
    }
    return 0;
}