Multidimesional Sequences

[Nimbecile]

Hi, I'm trying to dynamically create a seq[seq[string]]. Below is what I came 
up with, and while it works, I'm wondering if it's the "right" way. At run 
time, the dimension sizes are known, so is an array more appropriate/efficient? 
Thanks for any insights you can provide.
    
    
    var rows = 2
    var cols = 3
    var s = newSeq[seq[string]](rows)
    for row in 0..<rows:
      s[row] = newSeq[string](cols)
      for col in 0..<cols:
        s[row][col] = "test" & $row & $col