how do i write this using javascript

Everyday, Adam saves Ksh. 29 in a shelf at 10:00 am. His friend Eve checks the amount in the shelf everyday at 10:00 pm and if the amount is more than or equal to Ksh. 100, she takes Ksh. 100 from it.

On 1st January 2020, Adam observed that the amount in the shelf was exactly Ksh.3 before saving that day.

If after some days, Adam noticed that for the first time this year, the shelf was empty when he opened it to save the amount for that day, and he stopped saving from that day onwards...

Questions: 1. What was the total amount taken by Eve from the shelf this year? 2. On what date did Adam stop saving? 3. If Adam started saving before last Christmas, on what date did he start saving in the shelf?