Something like this would work for you
Code:
var %string $2-
var %tokens $numtok(%string,32)
var %i 1
var %main http://kbmod.com/multistream
var %end layout10/
while (%i <= %tokens) {
var %token $gettok(%string,%i,32)
var %multi $+(%multi,/,%token)
inc %i
}
echo -a $+(%main,%multi,%end)

Or just use $addtok instead

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