C111112111133131121133133313331323133313221211111333133311213331212111   >>    C11111211113313112113313331333132313331322121111133313331121333121211   <<    C111112111133131121133133313331323133313221211111333133311213331212113   >>      C111112111133131121133133313331323133313221211111333133311213331212112   >>