Delete ARP trafic for arp table

0 name="script1" owner="admin"

    policy=ftp,reboot,read,write,policy,test,winbox,password run-count=0 
    source=
      {/ip arp print file=mauro; 
      :local i [/ip arp print count-only]; 
      :for a from=0 to=($i - 2) do={:log [/ip arp print $a ]}

1 name="script2" owner="admin"

   policy=ftp,reboot,read,write,policy,test,winbox,password 
   last-started=apr/20/2007 15:32:14 run-count=1 
   source=
      /ip arp print file=mauro; 
      :local i [/ip arp print count-only];
      :for a from= 0 to=($i - 2) do={[/ip arp remove $i]}