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

Ex Input:
Problem: in a dance competition the points in each round for the first , second , third and fourth position were 10050 , 2010 . no other points were given . ashita participated in several rounds in the competition and the product of her score was 50000 . in how many rounds did she participate ?

Ex Output:
can not be determine


Ex Input:
Problem: the sum of ages of 5 children born at the intervals of 3 years each is 55 years . what is the age of the youngest child ?

Ex Output:
5 years


Ex Input:
Problem: a train 260 m long is running at a speed of 45 km / hr . in what time will it pass a bridge 140 m long ?

Ex Output:

32