K = gets.to_i
def search
  (1 .. 30).each do |n|
    (0 .. n).each do |z|
      return Array.new(z, 0) + Array.new(n - z, 1) if 2 ** z * (n - z) * (n - z - 1) == K * 2
    end
  end
end
ans = search
puts ans.size
puts ans * ' '