#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(i,n) for (int i = 0; i < (n); ++i)
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 (b<a) { a=b; return 1; } return 0; }
const ll INF=1LL<<60;
const int inf=(1<<30)-1;
const int mod=1e9+7;
int dx[8]={1,0,-1,0,-1,-1,1,1};
int dy[8]={0,1,0,-1,-1,1,-1,1};
int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    double a,b,c,d;cin >> a >> b >> c >> d;
    double D=(a-c)*(a-c)-4*2*(b-d);
    if(D<0){
        cout << "No" << endl;
    }
    else if(D==0){
        cout << "Yes" << endl;
    } 
    else{
        double l=(-(a-c)-sqrt(D))/4,r=(-(a-c)+sqrt(D))/4;
        double fl=l*l+a*l+b,fr=r*r+a*r+b;
        cout << fixed << setprecision(10) << (fr-fl)/(r-l) << " " << (fr-fl)/(r-l)*(-l)+fl << endl;
    }
}