#include<bits/stdc++.h>
using namespace std;
int m , n;
int a[1001];
long long f[10001];
int main()
{
	scanf("%d%d",&n,&m);
	for (int i = 1;i <= n;i++)
		scanf("%d",&a[i]);
	f[0] = 1;
	for(int i = 1;i <= n; i++)
		for (int j = m; j >= a[i]; j--)
			for (int k = 1;k <= j/a[i]; k++)
				f[j] += f[j - k*a[i]];
	printf("%lld",f[m]);
	return 0;
}