C31232233133313221211113313331333132313331333133313331333133313121111112123111   >>    C3123223313331322121111331333133313231333133313331333133313331312111111212311   <<    C31232233133313221211113313331333132313331333133313331333133313121111112123113   >>      C31232233133313221211113313331333132313331333133313331333133313121111112123112   >>