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

Input: Consider Input: Problem: if x = 1 + √ 2 , then what is the value of x 4 - 4 x 3 + 4 x 2 + 3 ?

Output: 4


Input: Consider Input: Problem: the set s consists of 5 numbers : { 1 , 2,3 , 4,5 } . if all possible subsets including the null set are created and one subset is chosen at random , what is the probability that the subset has 3 or 4 as its largest number ?

Output: 3 / 8


Input: Consider Input: Problem: the sum of three consecutive even numbers is 60 . find the middle number of the three ?


Output: 60