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

Example Input: Problem: a solid yellow stripe is to be painted in the middle of a certain highway . if 1 gallon of paint covers an area of w square feet of highway , how many gallons of paint will be needed to paint a stripe of t inches wide on a stretch of highway m miles long ? ( 1 mile = 5,280 feet and 1 foot = 12 inches )
Example Output: ( 5,280 mt ) / 12 w', 'b ) ( 5,280 pt ) / 12 m', 'c ) ( 5,280 pmt ) / 12', 'd ) ( 5,280 ) ( 12 m ) / pt', 'e ) ( 5,280 ) ( 12 p ) / mt'

Example Input: Problem: what is the units digit of 17 ^ 83 × 13 ^ 82 × 11 ^ 67 ?
Example Output: 4

Example Input: Problem: what is the minimum value of | x - 4 | + | x + 5 | + | x - 5 | ?
Example Output:
1