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

[EX Q]: A number is 14 less than the sum of 30 and 29 . What is the number ?
[EX A]: 45

[EX Q]: A dust storm sweeps across the prairie . It covers 64535 acres of the prairie in dust , but leaves 522 acres untouched . How many acres does the prairie cover ?
[EX A]: 65057

[EX Q]: Mike picked 7 apples , Nancy picked 3 apples , and Keith picked 6 apples and 4 pears , at the farm . How many apples were picked in total ?
[EX A]:
16