#include <bits/stdc++.h>
using namespace std ;
#define fast_input_output ios::sync_with_stdio(false); cin.tie(nullptr);
typedef long long ll ;
typedef long double ld ;
typedef pair<ll,ll> P ;
typedef tuple<ll,ll,ll> TP ;
#define chmin(a,b) a = min(a,b)
#define chmax(a,b) a = max(a,b)
#define bit_count(x) __builtin_popcountll(x)
#define gcd(a,b) __gcd(a,b)
#define lcm(a,b) a / gcd(a,b) * b
#define rep(i,n) for(int i = 0 ; i < n ; i++)
#define rrep(i,a,b) for(int i = a ; i < b ; i++)
#define endl "\n"

ll n , x , y ;
int R[202020] ;

int main(){
    fast_input_output
    cin >> n >> x >> y ;
    ll sum = 0 , minval = 1e18 ;
    rep(i,n){
        ll r ; 
        cin >> r ;
        sum += 2 * r ;
        chmin(minval,r) ;
    }
    sum -= minval ;
    if((x * x + y * y) % sum == 0){
        if((x * x + y * y) / sum <= sum) cout << "Yes" << endl ;
        else cout << "No" << endl ;
    }
    else{
        if((x * x + y * y) / sum >= sum) cout << "No" << endl ;
        else cout << "Yes" << endl ;
    }
}