#!/usr/bin/env python3

from pprint import pprint
from sys import setrecursionlimit, stdin
from typing import Dict, Iterable, Set

INF: int = 1 << 62
setrecursionlimit(1_000_000)


def inputs(type_=int):
    ins = input().split(' ')
    ins = [x for x in ins if x != '']

    if isinstance(type_, Iterable):
        return [t(x) for t, x in zip(type_, ins)]
    else:
        return list(map(type_, ins))


def input_(type_=int):
    a, = inputs(type_)
    return a


inputi = input_


def inputstr():
    return input_(str)


def answer(res) -> None:
    print(res)
    exit()


# start coding
n, w = inputs()
A = inputs()

from itertools import product

set_ = set()
for it in product(range(3), repeat=n):
    s = 0
    t = []
    for i, f in enumerate(it):
        if f == 1:
            s += A[i] // 2
            t.append(i)
        elif f == 2:
            s += A[i]
            t.append(i)
    if s == w:
        set_.add(tuple(t))

print(len(set_))