#include <bits/stdc++.h>

using namespace std;
const int N = 110;
int n, m;
int f[N];

int main() {
    freopen("QiaHao_WQ.in", "r", stdin);
    scanf("%d %d", &n, &m);
    f[0] = 1;
    for (int i = 1; i <= n; i++) {
        int v;
        scanf("%d", &v);
        for (int j = v; j <= m; j++) f[j] += f[j - v];
    }
    printf("%d\n", f[m]);
    return 0;
}