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:
A group of 3 friends went into a restaurant . The chef already had 8 chicken wings cooked but cooked 10 more for the group . If they each got the same amount how many would each person get ?

Ex Output:
6


Ex Input:
Rosa had 67 flowers . Andre gave her some more flowers . Now , Rosa has 90 flowers . How many flowers did Andre give to Rosa ?

Ex Output:
23


Ex Input:
The clown blew up 47 balloons . Then he blew up 13 more balloons . How many balloons does the clown have now ?

Ex Output:

60