import sys
from collections import defaultdict
read = sys.stdin.buffer.read

N,S,*P=map(int,read().split())

def get_subset_sums(P):
    n=len(P)
    dp=[0]*(1<<n)
    for mask in range(1,1<<n):
        last_bit=mask&(-mask)
        i=last_bit.bit_length()-1
        dp[mask]=dp[mask^last_bit]+P[i]
    return dp

dpl=get_subset_sums(P[:N//2])
dpr=get_subset_sums(P[N//2:])

dpr_memo = defaultdict(list)
for maskr, sumr in enumerate(dpr): dpr_memo[sumr].append(maskr)

def decode(s, t):
    n=N//2
    nums=[]
    for i in range(n):
        if s>>i&1:
            nums.append(i+1)
    for j in range(N-n):
        if t>>j&1:
            nums.append(n+j+1)
    return tuple(nums)

solutions=[]
for maskl, suml in enumerate(dpl):
    for maskr in dpr_memo[S-suml]: solutions.append(decode(maskl, maskr))

for solution in sorted(solutions): print(*solution)