C1111121111331311211331333133313331333133313221211113313331333132321123231211   >>    C111112111133131121133133313331333133313331322121111331333133313232112323121   <<    C1111121111331311211331333133313331333133313221211113313331333132321123231213   >>      C1111121111331311211331333133313331333133313221211113313331333132321123231212   >>