In bash, paramteres aren't separated by commas, but whitespace. Also, commands return their exit status, you need command substitution to get the output:

printf "%04o\n" $(umask)
[download]

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
[download]