C31232233133313221211113313331333133313331212111133133313331312111113211231   >>    C3123223313331322121111331333133313331333121211113313331333131211111321123   <<    C31232233133313221211113313331333133313331212111133133313331312111113211233   >>      C31232233133313221211113313331333133313331212111133133313331312111113211232   >>