use lists for compute sums with better precision,it actually can be improved with working in a 6 digits chunks that are treated as a 1 million base so the limits are breaked like 200.000 items limit because 6*200.000 turn 1.200.000
i will explain how this project works: first,you need to understand what a arbitrary precison op is: it's basically an arithmetic op or generic formula that works for any size numbers and don't have a strict size limit. for example the add op is just like the school ones,where we go right to left,and if the sum of the current digits is greater than 10 you take the mod 10 for the current digit and you divide by 10 for the carry that will be applied in the next digit. the same for the sub and mul ops.
