from collections import defaultdict
N, S = map(int, input().split())
P = [int(input()) for _ in range(N)]
M = N // 2

memo = defaultdict(list)
for bit in range(1 << M):
    cost = 0
    ids = []
    for i in range(M):
        if (bit >> i) & 1:
            ids.append(i + 1)
            cost += P[i]
    memo[cost].append(ids)

ans = []
for bit in range(1 << (N - M)):
    cost = 0
    ids = []
    for i in range(N - M):
        if (bit >> i) & 1:
            ids.append(i + M + 1)
            cost += P[i + M]
    for v in memo[S - cost]:
        tmp = tuple(v) + tuple(ids)
        ans.append(tmp)

ans.sort()
for a in ans:
    print(*a)