#include <bits/stdc++.h>
using namespace std;

long long n, w, nx = 1;
long long a[13];
set<long long> s;

int main()
{
	cin >> n >> w;

	for (long long i = 0; i < n; i++) {
		cin >> a[i];
		nx *= 3;
	}

	for (long long j = 0; j < nx; j++) {
		long long x = 0, y = j, k = 0, u = 0;

		while (y > 0) {
			if (y % 3 == 1) {
				x += a[k];
				u += (1 << k);
			}
			else if (y % 3 == 2) {
				x += a[k] / 2;
				u += (1 << k);
			}

			y /= 3;
			k++;
		}

		if (x == w)
			s.insert(u);
	}

	cout << s.size() << endl;
}