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: 2763 @ 869 # 8299
Example Output: -4667

Example Input: 5520 @ 1174 # 2584 # 6276 # 6659 @ 8281 # 5456 @ 1602 @ 4624
Example Output: 226

Example Input: 689 @ 227 @ 5910 # 3503
Example Output:
3323