We have a list containing 25 numbers, that we need to sort and figure out the greatest three numbers. However, the catch is that you can only sort 5 numbers in a single operation. So, basically imagine a function that will sort your numbers but can only take in 5 at a time. Using this function we need to be able to sort the 25 numbers to get top 3. Also, make a note of how many times the sorting function is called.