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: 2497 # 4988 @ 8200 # 3896 @ 5601 @ 1004
Example Output: 8418

Example Input: 8625 @ 3267 # 2323 # 3569
Example Output: 6000

Example Input: 7085 @ 2077 # 3530
Example Output:
5632