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: 2448 @ 5284 # 6313 @ 7761 @ 4601 @ 6800
Example Output: 20581

Example Input: 5137 @ 4207 @ 1156
Example Output: 10500

Example Input: 4258 # 7058 @ 6577 @ 3409
Example Output:
7186