require 'pp'

def divide(poly, div, q)
  c = poly[-1] / div[-1]
  q << c
  _poly = []
  _div = div.clone

  while _div.length < poly.length
    _div.unshift(0)
  end

  poly.length.times{|d|
    _poly[d] = poly[d] - c * _div[d]
  }
  while _poly[-1] == 0
    _poly.pop()
  end

  return [_poly, q]
end

d = gets.to_i
poly = gets.strip.split.map{|e| e.to_i}

div = [0, -1, 0, 1]
q = []

while div.length <= poly.length
  poly, q = divide(poly, div, q)
end

if poly.empty?
  puts 0
  puts 0
else
  puts (poly.length - 1)
  puts poly.join(' ')
end