#include "bits/stdc++.h"
using namespace std;
#define int long long
#define FOR(i, a, b) for(int i=(a);i<(b);i++)
#define RFOR(i, a, b) for(int i=(b-1);i>=(a);i--)
#define REP(i, n) for(int i=0; i<(n); i++)
#define RREP(i, n) for(int i=(n-1); i>=0; i--)
#define REP1(i, n) for(int i=1; i<=(n); i++)
#define RREP1(i, n) for(int i=(n); i>=1; i--)
#define ALL(a) (a).begin(),(a).end()
#define UNIQUE_SORT(l) sort(ALL(l)); l.erase(unique(ALL(l)), l.end());
#define CONTAIN(a, b) find(ALL(a), (b)) != (a).end()
#define out(...) printf(__VA_ARGS__)
#if DEBUG
#define debug(...) printf(__VA_ARGS__)
#else
#define debug(...) /* ... */
#endif

void solve();
signed main()
{
#if DEBUG
    std::ifstream in("input.txt");
    std::cin.rdbuf(in.rdbuf());
#endif
    cin.tie(0);
    ios::sync_with_stdio(false);
    solve();
    return 0;
}

/*================================*/
#if DEBUG
#define SIZE 100
#else
#define SIZE 123450
#endif

int a,b,c,d;

void solve() {
    cin>>a>>b>>c>>d;
    int A = 2;
    int B = a-c;
    int C = b-d;
    int D = B*B-4*A*C;
    if (D<0) {
        cout << "No" << endl;
        return;
    }
    if (D==0) {
        cout << "Yes" << endl;
        return;
    }
    double X1 = 0.5 * (-B + sqrt(D)) / A;
    double X2 = 0.5 * (-B - sqrt(D)) / A;
    double Y1 = pow(X1,2)+a*X1+b;
    double Y2 = pow(X2,2)+a*X2+b;
    double p = (Y1-Y2)/(X1-X2);
    double q = (X1*Y2-X2*Y1)/(X1-X2);
    out("%.10f %.10f\n",p,q);
}