Whats wrong with the script?

Hi I was trying to run the following script but doesnt seem its running. Can anyone please check the script and mention what wrong with this script?

sample script to control bw for internet at CO

:for i from=1 to=254 do = {
/queue simple add name=“UL_CO_” &i target-addresses=[(“192.168.1.”. $i)] interface=all parent=Total packet-marks=“” direction=both priority=8
\queue=default-\small/default-small limit-at=0/0 max-limit=256k/256k burst-limit=0/0 burst-threshold=0/0 burst-time=0s/0s total-queue=default-small
}

Regards,
Sayeed.

:for i from=1 to=254 do={
/queue simple add name=“UL_CO_$i” target-addresses=“192.168.1.$i” interface=all parent=Total packet-marks=“” direction=both priority=8 queue=default-small/default-small limit-at=0/0 max-limit=256k/256k burst-limit=0/0 burst-threshold=0/0 burst-time=0s/0s total-queue=default-small
}You could also do this:
name=(“UL_CO_”.$i) target-addresses=(“192.168.1.”.$i)