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:
Janet has 57 apples . She finds another 95 . How many apples does Janet have in all ?

Ex Output:
152


Ex Input:
There are 79 pencils in a box . Eric takes 4 pencils . How many are left ?

Ex Output:
75


Ex Input:
Debra removes 22 apples from a jar . There were originally 57 apples in the jar . How many apples are left in the jar ?

Ex Output:

35