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: Consider Input: Sally had 39 baseball cards, and 9 were torn. Sara bought 24 of Sally's baseball cards. How many baseball cards does Sally have now?

Output: 15.0


Input: Consider Input: Tom has 9 yellow balloons Sara has 8 yellow balloons. How many yellow balloons do they have in total?

Output: 17.0


Input: Consider Input: Alyssa loves eating fruits. Alyssa paid $12.05 for grapes, and $9.85 for cherries. In total, how much money did Alyssa spend?


Output: 21.9