C11112331312111112111133133313331333133112111113331333133313331323232132311   >>    C1111233131211111211113313331333133313311211111333133313331333132323213231   <<    C11112331312111112111133133313331333133112111113331333133313331323232132313   >>      C11112331312111112111133133313331333133112111113331333133313331323232132312   >>