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

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<<"Yes"<<endl;
	}
	else if(D<0)
	{
		cout<<"No"<<endl;
	}
	else
	{
		double e,f;
		e = (-a+c + sqrt(D))/4.0;
		f = (-a+c - sqrt(D))/4.0;
		double ey = e*e+a*e+b;
		double fy = f*f+a*f+b;

		printf("%.10lf %.10lf\n",(ey-fy)/(e-f),(ey-fy)/(e-f)*(-e)+ey);

	}
	
}