# -*- coding: utf-8 -*-
import sys,copy,math,heapq,itertools as it,fractions,re,bisect,collections as coll

N, S = map(int, raw_input().split())
P = [int(raw_input()) for i in xrange(N)]

ans = []
dic = {0:[()]}
for i in xrange(1, N / 2 + 1):
    for select in it.combinations(range(N / 2), i):
        s = sum(P[j] for j in select)
        if s == S:
            ans.append(select)
        if s in dic:
            dic[s].append(select)
        else:
            dic[s] = [select]

for i in xrange(1, N - N / 2 + 1):
    for select in it.combinations(range(N / 2, N), i):
        s = sum(P[j] for j in select)
        if S - s in dic:
            for ls in dic[S - s]:
                ans.append(list(ls + select))

ans = [[i + 1 for i in line] for line in ans]
ans.sort()
for line in ans:
    print " ".join(map(str, line))