C11112331312111112111133133313331333132323133313331333133313112112123131   >>    C1111233131211111211113313331333133313232313331333133313331311211212313   <<    C11112331312111112111133133313331333132323133313331333133313112112123133   >>      C11112331312111112111133133313331333132323133313331333133313112112123132   >>