C111123313121111121111331333133313331333131221111331333131133133313231121322321   >>    C11112331312111112111133133313331333133313122111133133313113313331323112132232   <<    C111123313121111121111331333133313331333131221111331333131133133313231121322323   >>      C111123313121111121111331333133313331333131221111331333131133133313231121322322   >>