Code:
alias teller {
  var %i = 1, %total = $numtok($1-,32), %output
  while (%i <= %total) {
    var %x = $len($gettok($1-,%i,32))
    var %output = %output $+ $str(+,%x) $+ $chr(160)
    inc %i
  }
  $iif($isid,return,say) %output
}
I tested here and it works fine smile

Have fun wink
Zyzzy.

"All we are saying is give peace a chance" -- John Lennon