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: 5507 @ 4243 @ 5897 @ 7115 # 6687 @ 3875 # 298 @ 1379 @ 1973
Example Output: 23004

Example Input: 8293 # 4243 # 6119 @ 5292
Example Output: 3223

Example Input: 2815 # 7863 @ 3838 # 6236 @ 4028 # 7736 # 2846 # 9731
Example Output:
-23731