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: 3298 @ 1140 @ 3407 # 8200 # 7383 # 6043 @ 5264
Example Output: -8517

Example Input: 298 @ 1699 @ 1367 @ 5001
Example Output: 8365

Example Input: 8842 @ 3530 @ 7537
Example Output:
19909