C111112111133131121133133313331333133313123221211111133131133133313232211111   >>    C11111211113313112113313331333133313331312322121111113313113313331323221111   <<    C111112111133131121133133313331333133313123221211111133131133133313232211113   >>      C111112111133131121133133313331333133313123221211111133131133133313232211112   >>