def dfs(src)
  D[src] = $time
  (0..N - 1).each do |dst|
    if D[dst] == nil && G[src][dst] == 1
      D[dst] = D[src] + 1
      dfs(dst)
    end
  end
end

N = gets.to_i
G = (1..N).map{ Array.new(N, 0) }
N.times do
  u, k, *v = gets.split(' ').map(&:to_i)
  v.each do |vi|
    G[u - 1][vi - 1] = 1
  end
end

D = Array.new(N) #??????????¨????????????????
# F = Array.new(N) #?????£???????????????


# $time = 1
D[0] = 0

(0..N-1).each do |id|
  dfs(id) unless D[id]
end

(0..N-1).each do |id|
  puts "#{id + 1} #{D[id]}"
end