#include <bits/stdc++.h>
#define be(v) (v).begin(),(v).end()
#define pb(q) push_back(q)
#define rep(i, n) for(int i=0;i<n;i++)
#define all(i, v) for(auto& i : v)
typedef long long ll;
using namespace std;
const ll mod=1000000007, INF=(1LL<<60);
#define doublecout(a) cout<<fixed<<setprecision(10)<<a<<endl;

int main() {
    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(false); 
    ll n, x, y, r, sum = 0;
    cin >> n >> x >> y;
    rep(i, n) {
        cin >> r;
        if(i) sum += r * 2;
        else sum += r;
    }
    if(n == 1) {
        cout << (r*r == x*x + y*y ? "Yes" : "No") << endl;
        return 0;
    }
    cout << (sum*sum >= x*x + y*y ? "Yes" : "No") << endl;
    return 0;
}