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: 7924 @ 8575 # 3974 @ 6720
Example Output: 19245

Example Input: 9337 # 8816 @ 7801 @ 8011 @ 8821 @ 966 @ 1854
Example Output: 27974

Example Input: 5282 @ 2336 # 5833 # 229
Example Output:
1556