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.

Example Input: 219 people are going to the zoo , and there are 3 buses to take people . How many will go in each bus if the same number go in each one and all of the people go to the zoo ?
Example Output: 73

Example Input: There are 9 cards . 4 cards more are added . How many are there total ?
Example Output: 13

Example Input: At the beach , Janet and her sister both built sandcastles and then measured their heights . Janet 's sandcastle was 3.6666666666666665 feet tall and her sister 's was 2.3333333333333335 feet tall . How much taller was Janet 's sandcastle than her sister 's ?
Example Output:
1.3333333333333333