C13223313311212111133133313331333132333133313331323131123313331323223121   >>    C1322331331121211113313331333133313233313331333132313112331333132322312   <<    C13223313311212111133133313331333132333133313331323131123313331323223123   >>      C13223313311212111133133313331333132333133313331323131123313331323223122   >>