#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; ++i)
typedef long long ll;
using namespace std;

int main() {
    cin.tie(0)->sync_with_stdio(0);

    int N, M, L;
    cin >> N >> M >> L;
    vector<int> A(N);
    rep(i, N) cin >> A[i];

    vector<bool> dp(1001);
    dp[L] = true;

    rep(i, N) {
        vector<bool> next = dp;
        rep(j, 1001) {
            if (dp[j]) {
                next[(j + A[i]) / 2] = true;
            }
        }
        dp = next;
    }

    if (dp[M])
        cout << "Yes\n";
    else
        cout << "No\n";

    return 0;
}