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:
A carpenter bought a piece of wood that was 0.43 meters long. Thenshe sawed 0.33 meters off the end. How long is the piece of woodnow?

Ex Output:
0.1


Ex Input:
Dale's Vegetarian Restaurant bought 2.8 pounds of green peppers and 2.4 pounds of red peppers. How many pounds of peppers did Dale's Vegetarian Restaurant buyin all?

Ex Output:
5.2


Ex Input:
Tom purchased a Batman game for $13.60, and a Superman gamefor $5. Tom already owns 2 games. How much did Tom spend onvideo games?

Ex Output:

18.6