#pragma GCC optimize ("O3")
#pragma GCC target ("avx2")
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)
#define co(x) cout << (x) << "\n"
#define cosp(x) cout << (x) << " "
#define ce(x) cerr << (x) << "\n"
#define cesp(x) cerr << (x) << " "
#define pb push_back
#define mp make_pair
#define chmin(x, y) x = min(x, y)
#define chmax(x, y) x = max(x, y)
#define Would
#define you
#define please

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);


	ll A, B, C, D;
	cin >> A >> B >> C >> D;

	ll are = (A - C) * (A - C) - 8 * (B - D);

	if (are < 0) co("No");
	else if (are == 0) co("Yes");
	else {
		double kari = are / 16.0;
		kari = sqrt(kari);
		double x1 = kari - (A - C) / 4.0;
		double x2 = -kari - (A - C) / 4.0;
		double y1 = x1 * x1 + A * x1 + B;
		double y2 = x2 * x2 + A * x2 + B;
		double katamuki = (y1 - y2) / (x1 - x2);
		cout << setprecision(12) << katamuki << " " << -katamuki * x1 + y1 << endl;
	}



	Would you please return 0;
}