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:
Tim has 44 books. Sam has 52 books. How many books do they havetogether?

Ex Output:
96.0


Ex Input:
Last week Tim had 12 dollars and Keith had 36 dollars. Tim washedcars over the weekend and now has 75 dollars. How much money didTim make washing cars?

Ex Output:
63.0


Ex Input:
A tailor cut 0.75 inch off a skirt and 0.25 inch off a pair of pants. Howmuch more did the tailor cut off the skirt than the pants?

Ex Output:

0.5