#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define endl '\n'

int main(){
    cin.tie(0)->sync_with_stdio(0);

    int n, m, l;
    cin >> n >> m >> l;
    vector<bool> dp(1001, false);
    dp[l] = true;
    int a;
    for(int i = 0; i < n; i++){
        cin >> a;
        vector<bool> ndp(1001, false);
        for(int j = 1; j < 1001; j++){
            if(dp[j]){
                ndp[j] = true;
                ndp[(j + a) / 2] = true;
            }
        }
        swap(dp, ndp);
    }
    if(dp[m]) cout << "Yes" << endl;
    else cout << "No" << endl;

}