script to disable pptp-out2 when pptp-out1 is running and vice versa

/system script
add name=s1 owner=admin policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon source=
“:if ([/interface get [find name="pptp-out1"] running]=true) do={interface disable pptp-out2}\r
\n”
add name=s2 owner=admin policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon source=
“:if ([/interface get [find name="pptp-out1"] running]=!true) do={\r
\n :if ([/interface get [find name="pptp-out2"] running]=!true) do={\r
\n interface enable pptp-out2\r
\n }\r
\n}”

/system scheduler
add interval=60s name=s1 on-event=s1 policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon
start-time=startup
add interval=60s name=s2 on-event=s2 policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon
start-time=startup