#include #define rep(i,n) for(int i = 0; i < (n); i++) using namespace std; typedef long long ll; int main(){ cin.tie(0); ios::sync_with_stdio(0); ll N,X,Y; cin >> N >> X >> Y; vector R(N); rep(i,N) cin >> R[i]; ll XY = X * X + Y * Y; if(N == 1 && XY != R[0] * R[0]) { cout << (XY != R[0] * R[0] ? "No" : "Yes") << endl; } else { ll sum = accumulate(R.begin(), R.end(), 0LL); ll ma = *max_element(R.begin(), R.end()); ll mi = *min_element(R.begin(), R.end()); ll R = sum * 2 - mi; ll L = max(0LL, mi - (sum - mi) * 2); cout << ((__int128_t)L * L <= XY && XY <= (__int128_t)R * R? "Yes" : "No") << endl; } }