C111112111133131121133133313331333133313331323133313332233132321   >>    C11111211113313112113313331333133313331333132313331333223313232   <<    C111112111133131121133133313331333133313331323133313332233132323   >>      C111112111133131121133133313331333133313331323133313332233132322   >>