C1111133313331323223313331333133313331333133313331333231123213233121   >>    C111113331333132322331333133313331333133313331333133323112321323312   <<    C1111133313331323223313331333133313331333133313331333231123213233123   >>      C1111133313331323223313331333133313331333133313331333231123213233122   >>