C11112331312111112111133133313331333133313331333133313331333112133313132321   >>    C1111233131211111211113313331333133313331333133313331333133311213331313232   <<    C11112331312111112111133133313331333133313331333133313331333112133313132323   >>      C11112331312111112111133133313331333133313331333133313331333112133313132322   >>