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: 7165 @ 3630 @ 9021 # 4140 @ 319
Example Output: 15995

Example Input: 2342 # 5338 @ 345 @ 9010 @ 5234 @ 9613
Example Output: 21206

Example Input: 3443 # 5785 @ 5458 # 9078 # 3179 # 2293 @ 1283 # 7515
Example Output:
-17666