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:
Charles has 4 apples . Jessica gives Charles 39 more . How many apples does Charles have in all ?

Ex Output:
43

Ex Input:
Abe 's family moved from the Bahamas to Japan , so they had convert their money into Japanese yen . Their checking account now has 6359 yen and their savings account now has 3485 yen . How many yen do they have ?

Ex Output:
9844

Ex Input:
A waiter had 6 tables he was waiting on , with 3 women and 5 men at each table . How many customers total did the waiter have ?

Ex Output:
48