#include <bits/stdc++.h>
using namespace std;
#define int long long
constexpr int N = 10010, M = 10010;
constexpr int inf = 1E18, mod = 100003;
int n, m, dp[N], a[N];
inline void Main() {
    cin >> n >> m;
    for (int i = 1; i <= n; i ++) cin >> a[i];
    dp[0] = 1;
    for (int i = 1; i <= n; i ++) {
        for (int j = m; j >= a[i]; j --) {
            dp[j] += dp[j - a[i]];
        }
    }
    cout << dp[m] << '\n';
}
signed main() {    
    cin.tie(nullptr)->sync_with_stdio(false);
    int T = 1; 
    while(T --) Main();
    return 0;
}