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.

Q: Sam found 35 seashells on the beach , he gave Joan 18 of the seashells . How many seashells does he now have ?

A: 17
****
Q: Ernest starts with 17 crayons . Jennifer takes 6 away . How many crayons does Ernest end with ?

A: 11
****
Q: Ethan has 31 presents . Alissa has 22 more than Ethan . How many presents does Alissa have ?

A:
53
****