from itertools import product
n,w=map(int,input().split())
a=list(map(int,input().split()))
ans=set()
for bit in product(range(3),repeat=n):
    if sum(bit)==0:
        continue
    tmp=0
    for i in range(n):
        if bit[i]==1:
            tmp+=a[i]
        elif bit[i]==2:
            tmp+=a[i]//2
    if tmp==w:
        sel=[]
        for i in range(n):
            if bit[i]!=0:
                sel.append(i)
        sel=tuple(sel)
        ans.add(sel)
print(len(ans))