> If any of you were to do a search for a freak like this, what strategy would you use? my preference, as there is so much data, would be the row where three 3-digit numbers appear first: > n:=10 0 0 9 84 102 172 117 15 0 1 0 0 and then I'd use 102,172,117 and the reverse for search, although it's a bit risky to go so far down. Should be %U already. ralf