def f(a, total)
  r = []
  g = lambda{|res, idx|
    return false if res > total
    return res == total if idx == a.size

    [:+, :*].each{|op|
      new_res = res.send(op, a[idx])
      next if new_res > total
      r << op
      if g.(new_res, idx+1)
        return true
      end
      r.pop
    }
    false
  }
  first = a.shift
  g.(first, 0)
  r
end

N = gets.to_i
Total = gets.to_i
A = gets.split.take(N).map(&:to_i)
puts f(A, Total)*""