Cacher is the code snippet organizer for pro developers

doc = 6.times
  .inject([]){|r, x| r << (0..10).to_a.sample(6).join(' ')}
  .join("\n")
puts doc #=>
=begin
0 7 1 3 5 10
1 6 4 2 10 0
7 5 6 0 8 9
4 2 3 8 6 0
6 9 2 3 7 10
1 5 7 0 3 10
=end