#include <iostream>
#include <vector>
using namespace std;

int dp[101][103000];

int main(){
  int n,m,l;cin>>n>>m>>l;
  dp[0][l] = 1;
  vector<int> A(n);
  for(int i = 0; n > i; i++){
    cin>>A[i];
  }
  for(int i = 0; n > i; i++){
    for(int j = 0; 1000*(n+1) >= j; j++){
      dp[i+1][j] |= dp[i][j];
      dp[i+1][(j+A[i])/2] |= dp[i][j];
    }
  }
  for(int i = 0; n >= i; i++){
    if(dp[i][m]){
      cout << "Yes" << endl;
      return 0;
    }
  }
  cout << "No" << endl;
}