#include <bits/stdc++.h>
using namespace std;
#define modulo 1000000007
#define mod(mod_x) ((((long long)mod_x+modulo))%modulo)
#define Inf 10000000000000000


int main(){
	
	long long a,b,c,d;
	cin>>a>>b>>c>>d;
	
	long long t = (a-c)*(a-c)-8*(b-d);
	
	if(t<0){
		cout<<"No"<<endl;
	}
	else if(t==0){
		cout<<"Yes"<<endl;
	}
	else{
		double x1 = (-a+c)/4.0;
		double x2 = x1;
		x1 += sqrt((double)t)/4.0;
		x2 -= sqrt((double)t)/4.0;
		double y1 = pow(x1,2.0)+(double)a*x1+b;
		double y2 = pow(x2,2.0)+(double)a*x2+b;
		//cout<<x1<<','<<y1<<endl;
		double p = (y1-y2)/(x1-x2);
		double q = y1 - x1 * p;
		cout<<fixed<<setprecision(10)<<p<<' '<<q<<endl;
	}
	
	return 0;
}