C1111121111331311211331333133313331333133313221211113313331311211322321   >>    C111112111133131121133133313331333133313331322121111331333131121132232   <<    C1111121111331311211331333133313331333133313221211113313331311211322323   >>      C1111121111331311211331333133313331333133313221211113313331311211322322   >>