The task is to generate the correct answer for a given math problem.

Example Input: Problem: a train 800 m long can cross a pole in 10 sec and then find the speed of the train ?
Example Output: 28

Example Input: Problem: a retailer buys 80 pens at the market price of 36 pens from a wholesaler , if he sells these pens giving a discount of 1 % , what is the profit % ?
Example Output: 12

Example Input: Problem: a cricket player whose bowling average was 21.5 runs per wicket , takes 5 wicket for 52 runs in a match . due to this his average decreases by 0.5 . what will be the number of wickets taken by him till the last match ?
Example Output:
111