#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
using ll=long long;
using ld=long double;
ld pie=3.141592653589793;
ll mod=1000000007;
ll inf=10099999999999990;
int main(){
    ll n,w;
    cin  >> n >> w;
    vector<ll>a(n);
    for (ll i = 0; i < n; i++)
    {
        cin >> a[i];
    }
    vector<ll>thr(20,1),two(20,1);
    for (ll i = 1; i < 20; i++)
    {
        thr[i]=thr[i-1]*3;
        two[i]=two[i-1]*2;
    }
    ll ans=0;
    map<ll,ll>memo;
    for (ll i = 0; i <thr[n] ; i++)
    {
        ll x=0;
        ll z=0;
        for (ll j = 0; j < n; j++)
        {
            ll y=i%thr[j+1];
            y/=thr[j];
            x+=(a[j]*y)/2;
            if (y>=1)
            {
                z+=two[j];
            }
        }
        if (x==w)
        {
            memo[z]++;
        }
    }for(auto v:memo){
        ans++;
    }
    cout << ans << endl;
}