#include <bits/stdc++.h>
#define rep(i,n) for(int i=(0);i<(n);i++)

using namespace std;

typedef long long ll;
typedef long double ld;

template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }

double eps = 1e-10;

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

	double a, b, c, d;
	cin >> a >> b >> c >> d;

	double han = (a - c) * (a - c) - 8 * (b - d);
	if(han + eps < 0){
		cout << "No" << endl;
	}else if(fabs(han - 0.0) < eps){
		cout << "Yes" << endl;
	}else{
		double x1 = (- (a - c) + sqrt(han)) / 4;
		double x2 = (- (a - c) - sqrt(han)) / 4;
		double y1 = x1 * x1 + a * x1 + b;
		double y2 = x2 * x2 + a * x2 + b;

		double p = (y2 - y1) / (x2 - x1);
		double q = -(y2 - y1) / (x2 - x1) * x1 + y1;

		cout << fixed << setprecision(10);
		cout << p << " " << q << endl;
	}
}