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: 4264 # 4438 @ 3871 @ 7585 # 540 # 3455 # 6016
Example Output: 1271

Example Input: 720 # 1309 @ 989 @ 1211 # 5749 # 7 @ 3147 # 9792 # 1243
Example Output: -12033

Example Input: 7775 # 6603 # 2341 # 1521 @ 6674 # 9241 # 1387 @ 597
Example Output:
-6047