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

Q=P[:N//2]
R=P[N//2:]

L=N//2
DP0=[0]*(1<<L)

L0=L

for i in range(1<<L):
    X=0
    for j in range(L):
        if i & (1<<j) != 0:
            X+=Q[j]
    DP0[i]=X

L=N-N//2
DP1=dict()

for i in range(1<<L):
    X=0
    for j in range(L):
        if i & (1<<j) != 0:
            X+=R[j]
    if X in DP1:
        DP1[X].append(i)
    else:
        DP1[X]=[i]

ANS=[]
for i in range(1<<L0):
    if S-DP0[i] in DP1:
        k=bin(i)[2:].zfill(L0)

        for j in DP1[S-DP0[i]]:
            l=bin(j)[2:].zfill(L)

            s=k[::-1]+l[::-1]
            X=[]
            for l in range(N):
                if s[l]=="1":
                    X.append(l+1)
            ANS.append(X)

for ans in sorted(ANS):
    print(*ans)