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

Ex Input:
jake has 34 fewer balls than audrey . audrey has 41 balls . how many balls does jake have ?

Ex Output:
7


Ex Input:
58 children are taking a bus to the zoo . they sit 2 children in every seat . how many seats will the children need in all ?

Ex Output:
29


Ex Input:
paul spent $ 75 . now he has $ 11 . what 's the difference between the number of dollars that he spent and he has now ?

Ex Output:

64


