C111123313121111121111331333133313331323231333133313221232212111   >>    C11112331312111112111133133313331333132323133313331322123221211   <<    C111123313121111121111331333133313331323231333133313221232212113   >>      C111123313121111121111331333133313331323231333133313221232212112   >>