C31232233133313221211113313331333132313331322121111121111113312233231   >>    C3123223313331322121111331333133313231333132212111112111111331223323   <<    C31232233133313221211113313331333132313331322121111121111113312233233   >>      C31232233133313221211113313331333132313331322121111121111113312233232   >>