C11112331312111112111133133313331333133313232233132313331333132311   >>    C1111233131211111211113313331333133313331323223313231333133313231   <<    C11112331312111112111133133313331333133313232233132313331333132313   >>      C11112331312111112111133133313331333133313232233132313331333132312   >>