C111112111133131121133133313331333131131211113313331333133313232223132321   >>    C11111211113313112113313331333133313113121111331333133313331323222313232   <<    C111112111133131121133133313331333131131211113313331333133313232223132323   >>      C111112111133131121133133313331333131131211113313331333133313232223132322   >>