C111123313121111121111331333133313331333131233133313113313332231321   >>    C11112331312111112111133133313331333133313123313331311331333223132   <<    C111123313121111121111331333133313331333131233133313113313332231323   >>      C111123313121111121111331333133313331333131233133313113313332231322   >>