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 were 28 girls and 35 boys on the playground at recess . How many children were there in all ?

Output: 63


Input: Consider Input: Jeremy strolled 20 kilometers at 2 kilometers per hour . How long did Jeremy stroll ?

Output: 10


Input: Consider Input: A sandbox is 312 centimeters long and 146 centimeters wide . How many square centimeters of ground does the sandbox cover ?


Output: 45552