C1111121111331311211331333133313331333133313221211113313331313211231   >>    C111112111133131121133133313331333133313331322121111331333131321123   <<    C1111121111331311211331333133313331333133313221211113313331313211233   >>      C1111121111331311211331333133313331333133313221211113313331313211232   >>