#include <bits/stdc++.h>
using namespace std;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}
using Int = long long;
const char newl = '\n';


struct Precision{
  Precision(){
    cout<<fixed<<setprecision(12);
  }
}precision_beet;


template<typename T> void drop(const T &x){cout<<x<<endl;exit(0);}

//INSERT ABOVE HERE
signed main(){
  cin.tie(0);
  ios::sync_with_stdio(0);

  using D = double;
  D a,b,c,d;
  cin>>a>>b>>c>>d;

  D A=2,B=a-c,C=b-d;

  if(B*B<4*A*C) drop("No");
  if(B*B==4*A*C) drop("Yes");

  D x1=(-B-sqrt(B*B-4*A*C))/(2*A);
  D x2=(-B+sqrt(B*B-4*A*C))/(2*A);

  auto calc=[&](D x){return x*x+a*x+b;};
  D y1=calc(x1),y2=calc(x2);

  D p=(y2-y1)/(x2-x1);
  D q=y1-p*x1;
  cout<<p<<' '<<q<<newl;
  return 0;
}