In cells O1 thru AF1 I have numbers 1 thru 18. In cell I19 I type a number between 1 and 18. In cell I21 I type a number between 1 and 18. In cells O17 thru AF17 I have miscellaneous money amounts. In cell L23 I want a formula that will sum the numbers in row 17 that match the numbers in I19 and I21. Example: if in I19 I type 2 and in I21 I type 10 I want the sum in row 17 from P17 to X17. Regards