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.

Ex Input:
Fred has 5 baseball cards . Melanie bought 3 of Fred 's baseball cards . How many baseball cards does Fred have now ?

Ex Output:
2


Ex Input:
Shirley starts with 98 eggs . She buys 8 more . How many eggs does Shirley end with ?

Ex Output:
106


Ex Input:
Faye was playing a video game where she scores 7 points for each treasure she finds . If she found 2 treasures on the first level and 6 on the second , what would her score be ?

Ex Output:

56