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: 6267 @ 3304 @ 9078 @ 9734 # 2947 # 4223 @ 4824 # 3116
Example Output: 22921

Example Input: 8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
Example Output: 4929

Example Input: 9086 @ 2654 # 7623 @ 901 # 7548 # 4881 @ 9 @ 3489
Example Output:
-3913