This can be cleaned up/optimized and is intentionally verbose but should get you started. Notably, the logic inside the last IF is almost identical to that of the WHILE and the block that gets the numeric value of the left/right elements is repeated four times.
You can use a trick to count the number of commas in a comma separated list.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.