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:
There are 115 pencils in the drawer . Sara placed 100 more pencils in the drawer . How many pencils are now there in all ?

Ex Output:
215


Ex Input:
Jason has 676 Pokemon cards . Alyssa bought 224 of Jason 's Pokemon cards . How many Pokemon cards does Jason have now ?

Ex Output:
452


Ex Input:
There are 12 birds on the fence . 8 more birds land on the fence . How many birds are on the fence ?

Ex Output:

20