#include<bits/stdc++.h>
#define ll long long
using namespace std;
int n,k;
int a[100];
ll ans=0;
void dfs(int x,ll sum){
    if(x==n+1){
        if(sum==k)
        ans++;
        return;
    }
    if(sum>k){
        return;
    }
    for(int i=0;i<=1;i++){
        dfs(x+1,a[i]*i+sum);
    }
}
int main(){
	freopen("password1.in","r",stdin);
	freopen("password1.out","w",stdout); 
    scanf("%d%d",&n,&k);
    for(int i=1;i<=n;i++){
        scanf("%d",&a[i]);
    }
    dfs(1,0);
    printf("%lld",ans);
    return 0;
}