C31232233133313221211113313331333132313331322121111112211232213113111   >>    C3123223313331322121111331333133313231333132212111111221123221311311   <<    C31232233133313221211113313331333132313331322121111112211232213113113   >>      C31232233133313221211113313331333132313331322121111112211232213113112   >>