C11111333133313232233133313331333133313331311331312111133133313331312312321   >>    C1111133313331323223313331333133313331333131133131211113313331333131231232   <<    C11111333133313232233133313331333133313331311331312111133133313331312312323   >>      C11111333133313232233133313331333133313331311331312111133133313331312312322   >>