C111123313121111121111331333133313331323232133313331333121111331333131232212111   >>    C11112331312111112111133133313331333132323213331333133312111133133313123221211   <<    C111123313121111121111331333133313331323232133313331333121111331333131232212113   >>      C111123313121111121111331333133313331323232133313331333121111331333131232212112   >>