You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.

Input: Consider Input: Greg and Sharon own neighboring cornfields. Greg harvested 0.4 acreof corn on Monday and Sharon harvested 0.1 acre. How many moreacres did Greg harvest than Sharon?

Output: 0.3

Input: Consider Input: Sam found 35 seashells on the beach, he gave Joan 18 of theseashells. How many seashells does he now have?

Output: 17.0

Input: Consider Input: Wendy ran 19.8 miles and walked 9.2 miles. How much farther did Wendy run thanwalk?
Output: 10.6