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: 8698 # 7378 # 9188 @ 5767 # 2935 # 2532 @ 7113
Example Output: -455

Example Input: 6322 # 7953 # 5 @ 7093 @ 5659 @ 5045 # 904
Example Output: 15257

Example Input: 599 # 5713 # 812 @ 4618 # 8746 @ 6342 # 6157
Example Output:
-9869