C111123313121111121111331333133313331322121111331333133313331323323131321   >>    C11112331312111112111133133313331333132212111133133313331333132332313132   <<    C111123313121111121111331333133313331322121111331333133313331323323131323   >>      C111123313121111121111331333133313331322121111331333133313331323323131322   >>