#include <bits/stdc++.h>
using namespace std;

int main()
{
	long long a, b, c, d;
	cin >> a >> b >> c >> d;

	long long A = 2;
	long long B = a - c;
	long long C = b - d;
	long long D = B * B - 4 * A * C;
	if( D < 0 ) cout << "No" << endl;
	else if( D == 0 ) cout << "Yes" << endl;
	else {
		double x0 = ( -B + sqrt( (double)D ) ) / (2 * A);
		double x1 = ( -B - sqrt( (double)D ) ) / (2 * A);
		double y0 = x0 * x0 + a * x0 + b;
		double y1 = x1 * x1 + a * x1 + b;
		double p = y1 - y0;
		if( x1 == x0 || p == 0 ) p = 0;
		else p /= x1 - x0;
		double q = y0 - p * x0;
		cout << fixed << setprecision(12) << p << " " << q << endl;
	}
}