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

Example Input: Problem: the number of positive integer solutions for the equation x + y + z + t = 30 is
Example Output: 3654

Example Input: Problem: 20 percent of country y ' s yearly exports come from fruit exports . one - sixth of all fruit exports from country y are orange exports . if country y generates $ 4.25 million from its orange exports , how much money does it generate from its yearly total of exports ?
Example Output: $ 127.5 m

Example Input: Problem: the population of locusts in a certain swarm doubles every two hours . if 4 hours ago there were 1,000 locusts in the swarm , in approximately how many hours will the swarm population exceed 128,000 locusts ?
Example Output:
10