C111123313121111121111331333133313331333131333133313331333133311213231323321   >>    C11112331312111112111133133313331333133313133313331333133313331121323132332   <<    C111123313121111121111331333133313331333131333133313331333133311213231323323   >>      C111123313121111121111331333133313331333131333133313331333133311213231323322   >>