Detailed Instructions: 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.
Problem:at the first day back in school her parents bought her different colored pens . if her parents bought her 56 pens and she gave 22 of those to her friends how many pens were left for her to use ?
Solution:
34