#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){

    ll N, X, Y, D2, R, S=0;
    cin >> N >> X >> Y;
    vector<ll> r(N);
    D2 = X*X+Y*Y;
    for (int i=0; i<N; i++) cin >> r[i];
    sort(r.begin(), r.end());

    R = r[0];
    for (int i=1; i<N; i++) S += r[i]*2;

    if (N == 1){
        cout << (D2 == R*R ? "Yes" : "No") << endl;
        return 0;
    }
    if (R*R <= D2) cout << ((D2+R+S-1)/(R+S) <= (R+S) ? "Yes" : "No") << endl;
    else cout << (((R-S<=0) || ((R-S)*(R-S) <= D2)) ? "Yes" : "No") << endl;

    return 0;
}