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

Ex Input:
Mary had 33 Pokemon cards , and 6 were torn . Sam gave Mary 23 new Pokemon cards . How many Pokemon cards does Mary have now ?

Ex Output:
56


Ex Input:
Each year , salmon travel upstream , going from the ocean to the rivers where they were born . This year , 712261 male and 259378 female salmon returned to their rivers . How many salmon made the trip ?

Ex Output:
971639


Ex Input:
Mrs. Sheridan has 17 cats . Mr. Sheridan gave her 14 more cats . How many cats does Mrs. Sheridan have altogether ?

Ex Output:

31