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: 2853 @ 2447 @ 3565
Example Output: 8865

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

Example Input: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392
Example Output:
-3306