#include<stdio.h>
int N,M;
int a[1001];
long long Bag[10001];
int main()
{
	scanf("%d%d",&N,&M);
	
	for(int i=1;i<=N;++i)
	{
		scanf("%d",&a[i]);
	}
	Bag[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)
			{
				Bag[j]+=Bag[j-k*a[i]];
			}
		}
	}
	printf("%lld",Bag[M]); 
	
	return 0;
}
/**************************************************************
	Problem: 2074
	User: admin
	Language: C
	Result: Accepted
	Time:76 ms
	Memory:1228 kb
****************************************************************/