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: 1767 @ 7166 @ 1543 @ 1185 @ 9966 # 6628
Example Output: 14999

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

Example Input: 2690 # 8113 # 6464 # 5657
Example Output:
-17544