You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Example Input: There school 's baseball team had 31 new players and 4 returning players . If the coach put them into groups with 7 players in each group , how many groups would there be ?
Example Output: 5

Example Input: Mike had 34 peaches at his roadside fruit dish . He went to the orchard and picked peaches to stock up . There are now 86 peaches . how many did he pick ?
Example Output: 52

Example Input: There are 39 dogwood trees currently in the park . Park workers will plant 41 more dogwood trees today and 20 more dogwood trees tomorrow . How many dogwood trees will the park have when the workers are finished ?
Example Output:
100