C1111121111331311211331333133313331333133313121111331333132232232321   >>    C111112111133131121133133313331333133313331312111133133313223223232   <<    C1111121111331311211331333133313331333133313121111331333132232232323   >>      C1111121111331311211331333133313331333133313121111331333132232232322   >>