#include <bits/stdc++.h>
using namespace std;
int main () {
    int N, M, L;
    cin >> N >> M >> L;
    int dp[1010];
    for (int i = 0; i <= 1000; i ++) {
        dp[i] = 0;
    }
    dp[L] = 1;
    for (int i = 0; i < N; i ++) {
        int a;
        cin >> a;
        int dp2[1010];
        for (int j = 0; j <= 1000; j ++) {
            dp2[j] = dp[j];
        }
        for (int j = 0; j <= 1000; j ++) {
            dp2[(j + a) / 2] |= dp[j];
        }
        for (int j = 0; j <= 1000; j ++) {
            dp[j] = dp2[j];
        }
    }
    cout << (dp[M] ? "Yes" : "No") << endl;
}