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

Ex Input:
Problem: a certain bacteria colony doubles in size every day for 25 days , at which point it reaches the limit of its habitat and can no longer grow . if two bacteria colonies start growing simultaneously , how many days will it take them to reach the habitat ’ s limit ?

Ex Output:
2


Ex Input:
Problem: what positive number , when squared , is equal to the cube of the positive square root of 14 ?

Ex Output:
4


Ex Input:
Problem: if | x - 9 | = 3 x , then x = ?

Ex Output:

- 4.