/**
 *   @FileName	b.cpp
 *   @Author	kanpurin
 *   @Created	2020.05.29 22:33:54
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

ll a,b,c,d;
double f(double x) {
    return x*x+a*x+b;
}
int main() {
    cin >> a >> b >> c >> d;
    ll D = (a-c)*(a-c) - 8*(b-d);
    if (D == 0) {
        puts("Yes");
    }
    else if (D < 0) {
        puts("No");
    }
    else {
        double x1,x2;
        x1 = (double(-(a-c))+sqrt(D))/4;
        x2 = (double(-(a-c))-sqrt(D))/4;
        double p = (f(x1)-f(x2))/(x1-x2);
        double q = -p*x1+f(x1);
        printf("%.10f %.10f\n",p,q);
    }
    return 0;
}