You will be given a definition of a task first, then some input of the task.
Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

an international group had 49 chinese americans and australians . 16 of them were americans and 11 of them were australians . how many chinese were there ?
Output:
22