#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for (long long i=0;i<(long long)(n);i++)
#define all(v) v.begin(),v.end()
using ll=long long;
using pll=pair<ll,ll>;
using tll=tuple<ll,ll,ll>;
const ll INF=(1ll<<60);
template<class T> void chmin(T &a,T b){
    if(a>b){
        a=b;
    }
}
template<class T> void chmax(T &a,T b){
    if(a<b){
        a=b;
    }
}
int main(){
    ll n,m,l;
    cin >> n >> m >> l;
    vector<ll> a(n);
    ll k=l;
    rep(i,n){
        cin >> a[i];
        k+=a[i];
    }
    vector<vector<bool>> dp(n+1,vector<bool>(k+1,false));
    dp[0][l]=true;
    rep(i,n){
        rep(j,k){
            if(dp[i][j]){
                dp[i+1][j]=true;
                dp[i+1][(j+a[i])/2]=true;
            }
        }
    }
    if(dp[n][m]) cout << "Yes" << endl;
    else cout << "No" << endl;
}