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.

Input: Consider Input: There are 64 pigs in the barn . Some more come to join them . Now there are 86 pigs . How many pigs came to join them ?

Output: 22

Input: Consider Input: Robin has 27 packages of gum . There are 18 pieces in each package . How many pieces of gum does Robin have ?

Output: 486

Input: Consider Input: Jason found 49 seashells and 48 starfish on the beach . He gave 13 of the seashells to Tim . How many seashells does Jason now have ?
Output: 36