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

Ex Input:
Problem: whats the reminder when 58 , 458,965 , 231,457 , 895,684 , 525,465 , 985,445 is divided by 16

Ex Output:
5


Ex Input:
Problem: what is the prime factors ’ number of 18 ?

Ex Output:
3


Ex Input:
Problem: car a is 16 miles behind car b , which is traveling in the same direction along the same route as car a . car a is traveling at a constant speed of 58 miles per hour and car bis traveling at a constant speed of 50 miles per hour . how many hours will it take for car a to overtake and drive 8 miles ahead of car b ?

Ex Output:

3.0