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: 8678 @ 7424 # 7399 @ 4601 @ 9327 @ 7787 @ 2286
Example Output: 32704

Example Input: 6340 # 5642 @ 8051 # 3877 # 2824 # 3105 # 9957 @ 9874 # 6399
Example Output: -7539

Example Input: 432 # 1366 @ 8607 @ 8228 @ 7247 # 1810
Example Output:
21338