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


int main() {
  int n, m, l; cin >> n >> m >> l;
  int N = 1001;
  vector<int> dp(N); dp[l] = 1;
  while(n--){
    int a; cin >> a;
    auto ndp = dp;
    for(int i = 0; i < N; ++i) dp[(i + a)/2] |= ndp[i];
  }
  puts(dp[m] ? "Yes" : "No");
}