#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m, l;
    cin >> n >> m >> l;
    vector<bool> dp(1001);
    dp[l] = true;
    for(int i = 0; i < n; i++){
        int v;
        cin >> v;
        vector<bool> ndp(1001);
        for(int j = 0; j < 1001; j++){
            if(dp[j]){
                ndp[j] = true;
                ndp[(j + v) / 2] = true;
            }
        }
        ndp[v] = true;
        swap(ndp, dp);
    }
    cout << (dp[m] ? "Yes" : "No") << '\n';
}