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:
Melanie grew 139 turnips. Benny grew 113 turnips. How manyturnips did they grow in all?

Ex Output:
252.0


Ex Input:
Mary has 9 yellow marbles Joan has 3 yellow marbles. How manyyellow marbles do they have in all?

Ex Output:
12.0


Ex Input:
Alyssa has 37 blue balloons, Sandy has 28 blue balloons, and Sallyhas 39 blue balloons. How many blue balloons do they have in all?

Ex Output:

104.0