C31232233133313221211113313331333131211113313231333131213113311   >>    C3123223313331322121111331333133313121111331323133313121311331   <<    C31232233133313221211113313331333131211113313231333131213113313   >>      C31232233133313221211113313331333131211113313231333131213113312   >>