C11112331312111112111133133313331333132323133313331323211321331311   >>    C1111233131211111211113313331333133313232313331333132321132133131   <<    C11112331312111112111133133313331333132323133313331323211321331313   >>      C11112331312111112111133133313331333132323133313331323211321331312   >>