C31232233133313221211113313331333133313331212111133133322133313231333232331221   >>    C3123223313331322121111331333133313331333121211113313332213331323133323233122   <<    C31232233133313221211113313331333133313331212111133133322133313231333232331223   >>      C31232233133313221211113313331333133313331212111133133322133313231333232331222   >>