C111123313121111121111331333133313331333131322113121111331322121233112321   >>    C11112331312111112111133133313331333133313132211312111133132212123311232   <<    C111123313121111121111331333133313331333131322113121111331322121233112323   >>      C111123313121111121111331333133313331333131322113121111331322121233112322   >>