C31232233133313221211113313331333132313331322121111121111113313311232321331   >>    C3123223313331322121111331333133313231333132212111112111111331331123232133   <<    C31232233133313221211113313331333132313331322121111121111113313311232321333   >>      C31232233133313221211113313331333132313331322121111121111113313311232321332   >>