N, M = gets.split.take(2).map(&:to_i)
AB = $<.map{|s| s.split.take(2).map(&:to_i).map(&:pred) }

numbers = [1] * N
team = [*0...N]

f = -> a,b{
  to = team[a]
  from = team[b]
  team.map!{|t|
    t == from ? to : t
  }
  sum = numbers[to] + numbers[from]
  numbers[to] = sum
  numbers[from] = sum
}

AB.each{|a, b|
  next if team[a] == team[b]
  if numbers[a] > numbers[b]
    f[a, b]
  elsif numbers[b] > numbers[a]
    f[b, a]
  elsif team[a] < team[b]
    f[a, b]
  else
    f[b, a]
  end
#   p numbers
#   p team
}
puts team.map(&:succ)