C111123313121111121111331333133313331333133313121111133313331333132212323321   >>    C11112331312111112111133133313331333133313331312111113331333133313221232332   <<    C111123313121111121111331333133313331333133313121111133313331333132212323323   >>      C111123313121111121111331333133313331333133313121111133313331333132212323322   >>