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

Ex Input:
Problem: one half of a two digit number exceeds its one third by 7 . what is the sum of the digits of the number ?

Ex Output:
e ) 1


Ex Input:
Problem: a = 5 ^ 10 - 625 ^ 2 and a / x is an integer , where x is a positive integer greater than 1 , such that it does not have a factor p such that 1 < p < x , then how many different values for x are possible ?

Ex Output:
two


Ex Input:
Problem: what is the least number of squares tiles required to pave the floor of a room 4 m 5 cm long and 2 m 25 cm broad ?

Ex Output:

4