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:
Harold has 53 marbles . He gets 16 more from Steve . How many marbles does Harold have in all ?

Ex Output:
69


Ex Input:
Willy has 1400 crayons . Lucy has 290 crayons . How many more crayons does Willy have then Lucy ?

Ex Output:
1110


Ex Input:
There are 2 apples in a pile on the desk . Each apple comes in a package of 7 . 4 apples are added to the pile . How many apples are there in the pile ?

Ex Output:

6