C1111133313331323223313331333133313331333132213331333133323311211   >>    C111113331333132322331333133313331333133313221333133313332331121   <<    C1111133313331323223313331333133313331333132213331333133323311213   >>      C1111133313331323223313331333133313331333132213331333133323311212   >>