C11112331312111112111133133313331333133313123313331333131322122321321   >>    C1111233131211111211113313331333133313331312331333133313132212232132   <<    C11112331312111112111133133313331333133313123313331333131322122321323   >>      C11112331312111112111133133313331333133313123313331333131322122321322   >>