/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2022.05.20 21:40:54
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;


int main() {
    int n;
    ll x,y;cin >> n >> x >> y;
    ll first_r;
    ll sum_r = 0;
    for (int i = 0; i < n; i++) {
        int r;cin >> r;
        if (i > 0) sum_r += 2*r;
        else first_r = r;
    }
    if (sum_r < first_r && x*x+y*y < (first_r-sum_r)*(first_r-sum_r)) {
        puts("No");
    }
    else if (x*x+y*y <= sum_r*sum_r) {
        puts("Yes");
    }
    else {
        puts("No");
    }
    return 0;
}