You are given a math word problem and you are supposed to apply multiplication or division mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
Mark sprinted 24 miles at 6 miles per hour . How long did Mark sprint ?

Ex Output:
4


Ex Input:
In one week , an airplane pilot flew 1134 miles on Tuesday and 1475 miles on Thursday . If the pilot flies the same number of miles 3 weeks in a row , how many miles does the pilot fly in all ?

Ex Output:
7827


Ex Input:
A worksheet had 4 problems on it . If a teacher had 9 worksheets to grade and had already graded 5 of them , how many more problems does she have to grade ?

Ex Output:

16