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: Each child has 2 candies . If there are 9 children , how many candies are there in total ?

Output: 18


Input: Consider Input: Gavin has 23 shirts . 6 are blue the rest are green . How many green shirts does Gavin have ?

Output: 17


Input: Consider Input: Stanley ran 0.4 mile and walked 0.2 mile . How much farther did Stanley run than walk ?


Output: 0.2