You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

Joan found 70 seashells on the beach. She gave Sam some of her seashells, after which she has 27 seashell left. How many seashells did she give to Sam?
Solution: 43.0
Why? The total number of seashells found by Joan is 70. Since she now has 27 seashells left, it implies that she gave 70-27 = 43 seashells to Sam. Hence the correct answer till 1st decimal place is 43.0.

New input: Joan found 75 seashells and 14 starfishes on the beach. She gave Timsome of her seashells. She has 62 seashell. How many seashells didshe give to Tim?
Solution:
13.0