#pragma GCC target("avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N, M, L;
    cin >> N >> M >> L;
    vector<int> A(N);
    for( int i = 0; i < N; i++ ) {
        cin >> A[i];
    }
    int K = 1000005;
    vector<int> dp1(K), dp2(K);
    dp1[min(K-1, L)] = 1;
    for( int i = 0; i < N; i++ ) {
        for( int l = 0; l < K; l++ ) {
            dp2[l] |= dp1[l];
            dp2[min(K-1, (l+A[i])/2)] |= dp1[l];
        }
        swap(dp1, dp2);
        fill(dp2.begin(), dp2.end(), 0);
    }
    cout << ( dp1[M] ? "Yes" : "No" ) << endl;
}