This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/*
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#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define dbg(x) cout << #x << '=' << x << '\n';
#define ll long long
#define x first
#define y second
#define pi pair <int, int>
#define vi vector <int>
const ll mod = 1000000007;
const ll nmax=100010;
#define int ll
int n, m, a[44], ans;
vector <int> s1, s2;
int32_t main(){
ios_base :: sync_with_stdio(0); cin.tie(); cout.tie();
cin>>n>>m;
s1.pb(0);
s2.pb(0);
for(int i=1; i<=n; i++) cin>>a[i];
int mid=(1+n)>>1;
for(int i=1; i<=mid; i++){
int s=s1.size();
for(int j=0; j<s; j++) s1.pb(s1[j]+a[i]);
}
sort(s1.begin(), s1.end());
for(int i=mid+1; i<=n; i++){
int s=s2.size();
for(int j=0; j<s; j++) s2.pb(s2[j]+a[i]);
}
//for(int i: s1) cout<<i<<" "; cout<<endl;
for(int x: s2){
ans+=upper_bound(s1.begin(), s1.end(), m-x)-s1.begin();
}
cout<<ans;
}
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