The operation is very simple Example see Youtube video. Traps eg .: the numbers 12,17,1,36,17,2,14,17, then the bracket is 17 (repeating number with at least 2 numbers in between. We first enter in the software the number of numbers in brackets: 5 (1,36,17,2,14,) As a result, we rely on the calculated numbers plus neighbors: (Relative-addition-subtraction) … if the numbers repeat there then it is a very safe signal. The software offers much more. Just try 🙂