func missing a[] .
   h = 1
   repeat
      v = 0
      for v in a[]
         if h = v
            break 1
         .
      .
      until v <> h
      h += 1
   .
   return h
.
a[][] = [ [ 1 2 0 ] [ 3 4 -1 1 ] [ 7 8 9 11 12 ] ]
for i to len a[][]
   write missing a[i][] & " "
.
