You will be given a definition of a task first, then some input of the task.
In this task, you will be presented with a question and you have to answer the question based on your knowledge. Your answers should be as short as possible.

For the environmental centre that host of the 13th annual Maryland Envirothon state level event in 2002 , what 's the population of the town where the centre is located ?
Output:
10,120