C11112331312111112111133133313331333132323133313331333133313112112113321   >>    C1111233131211111211113313331333133313232313331333133313331311211211332   <<    C11112331312111112111133133313331333132323133313331333133313112112113323   >>      C11112331312111112111133133313331333132323133313331333133313112112113322   >>