In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

Example Input: 8280 # 2607 # 4185 # 9243 @ 9839
Example Output: 2084

Example Input: 2405 @ 2160 @ 394 # 8936 # 2551 @ 5734 @ 5167
Example Output: 4373

Example Input: 1783 @ 3471 # 8620 @ 2058 # 7939 # 240
Example Output:
-9487