#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using ll = long long;
#define rep(i, n) for (ll i = 0; i < ll(n); i++)

int main(){
    int n,m,l;
    cin >> n >> m >> l;
    vector<int> a(n);
    rep(i,n) cin >> a[i];
    vector<vector<int>> dp(n+1,vector<int>(1001));
    dp[0][l] = 1;
    rep(i,n){
        rep(j,1001){
            if(dp[i][j] == 0) continue;
            dp[i+1][j] = 1;
            dp[i+1][(j+a[i])/2] = 1;
        }
    }
    if(dp[n][m]) cout << "Yes" << endl;
    else cout << "No" << endl;
}