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.

Ex Input:
Mary picked 14 oranges and Jason picked 41 oranges. Keith picked 38apples. How many oranges were picked in all?

Ex Output:
55.0


Ex Input:
There are 112 short trees and 119 tall trees currently in the park.Park workers will plant 105 short trees today. How many short treeswill the park have when the workers are finished?

Ex Output:
217.0


Ex Input:
A truck carrying 4.1 pounds of sand travels to a construction yard andloses 2.4 pounds of sand along the way. How much sand does thetruck have when it arrives at the yard?

Ex Output:

1.7