C31232233133313221211113313331333132313331322121111331333131323133311211223111   >>    C3123223313331322121111331333133313231333132212111133133313132313331121122311   <<    C31232233133313221211113313331333132313331322121111331333131323133311211223113   >>      C31232233133313221211113313331333132313331322121111331333131323133311211223112   >>