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: 8280 # 2607 # 4185 # 9243 @ 9839
Example Output: 2084

Example Input: 8161 @ 9287 # 6233
Example Output: 11215

Example Input: 4844 @ 1405 # 2912
Example Output:
3337