#include "bits/stdc++.h"
using namespace std;
int dp[2][2000];
int main(){
  int n,m,l;
  cin >> n >> m >> l;
  dp[0][l] = 1;
  for(int i = 0;i < n;++i){
    int x;
    cin >> x;
  	for(int q = 0;q <= 1000;++q){
    	dp[1][q] = 0;
    }
    for(int q = 0;q <= 1000;++q){
    	if(dp[0][q]){
        	dp[1][q] = 1;
            dp[1][(q+x)/2] = 1; 
        }
    }
    swap(dp[0],dp[1]);
  }
  if(dp[0][m]){
  	cout << "Yes" << endl;
  }else{
	cout << "No" << endl;
  }
}