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

Ex Input:
Problem: if log 2 = 0.3010 and log 3 = 0.4771 then the value of log 4.5 is :

Ex Output:
0.6532


Ex Input:
Problem: 60 percent of movie theatres in town x have 3 screens or less . 20 % of those theatres sell an average of more than $ 300 worth of popcorn per showing . 56 percent of all the movie theatres in town x sell $ 300 or less of popcorn per showing . what percent of all the stores on the street have 4 or more screens and sell an average of more than $ 300 worth of popcorn per day ?

Ex Output:
32


Ex Input:
Problem: the average of 25 results is 20 . the average of first 12 of those is 14 and the average of last 12 is 17 . what is the 13 th result ?

Ex Output:

128