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: 1744 @ 4800 # 4688 @ 2637 # 1656 # 4459 # 9618 @ 4120
Example Output: -7120

Example Input: 1559 @ 760 # 5027 # 8544 @ 4623 # 9238
Example Output: -15867

Example Input: 3640 @ 5700 # 9866 @ 6485
Example Output:
5959