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

Ex Input:
Problem: | x + 3 | – | 4 - x | = | 9 + x | how many solutions will this equation have ?

Ex Output:
1


Ex Input:
Problem: the average of first six prime numbers greater than 20 is ?

Ex Output:
3


Ex Input:
Problem: find the area of a parallelogram with base 22 cm and height 14 cm ?

Ex Output:

308 cm 2