C111112111133131121133133313331333133313331312111112111133133313232132212111   >>    C11111211113313112113313331333133313331333131211111211113313331323213221211   <<    C111112111133131121133133313331333133313331312111112111133133313232132212113   >>      C111112111133131121133133313331333133313331312111112111133133313232132212112   >>