Definition: 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.
Input: Dan found 56 seashells on the beach, he gave Jessica some of hisseashells. He has 22 seashell. How many seashells did he give toJessica?

34.0