def f(n, s, a)
  r = []

  g = lambda{|i, sum, rr|
    i.upto(a.size-1).each{|ii|
      new_sum = sum - a[ii]
      if new_sum < 0
        next
      elsif new_sum == 0
        r << rr + [ii]
      else
        g.(ii + 1, new_sum, rr + [ii])
      end
    }
  }
  g.(0, s, [])
  r
end

N, S = gets.split.map(&:to_i)
P = N.times.map{gets.to_i}

f(N, S, P).each{|r|
  puts r.map(&:succ)* " "
}