#yuki15
from collections import defaultdict as dd
from itertools import combinations as comb

n,s=map(int,raw_input().split())
p=[]
for i in xrange(n):
 p.append(int(raw_input()))

res=[]
dic=dd(list)
for i in xrange(1,n/2+1):
 for s1 in comb(range(n/2),i):
  t=sum(p[j] for j in s1)
  if t==s:
   res.append(s1)
  dic[t].append(s1)
for i in xrange(1,n-n/2+1):
 for s2 in comb(range(n/2,n),i):
  t=sum(p[j] for j in s2)
  if t==s:
   res.append(s2)
  for s1 in dic[s-t]:
   res.append(s1+s2)
res=[[i+1 for i in s] for s in res]
res.sort()
for s in res:
 print " ".join(map(str,s))