/* -*- coding: utf-8 -*-
 *
 * 1701.cc:  No.1701 half price - yukicoder
 */

#include<cstdio>
 
using namespace std;

/* constant */

const int MAX_N = 13;
const int NBITS = 1 << MAX_N;

/* typedef */

typedef long long ll;

/* global variables */

int as[MAX_N];

/* subroutines */

/* main */

int main() {
  int n, w;
  scanf("%d%d", &n, &w);
  for (int i = 0; i < n; i++) scanf("%d", as + i);

  int nbits = 1 << n, cnt = 0;
  for (int bits = 0; bits < nbits; bits++) {
    ll sum = 0;
    for (int i = 0, bi = 1; i < n; i++, bi <<= 1)
      if (bits & bi) sum += as[i];
    if (sum == w) cnt++;

    for (int i = 0, bi = 1; i < n; i++, bi <<= 1)
      if (bits & bi) {
	ll sumi = sum - as[i] / 2;
	if (sumi == w) cnt++;
      }
  }

  printf("%d\n", cnt);
  return 0;
}