C111112111133131121133133313331333133313331312111133133313113313221131212121   >>    C11111211113313112113313331333133313331333131211113313331311331322113121212   <<    C111112111133131121133133313331333133313331312111133133313113313221131212123   >>      C111112111133131121133133313331333133313331312111133133313113313221131212122   >>