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: 298 @ 1699 @ 1367 @ 5001
Example Output: 8365

Example Input: 3438 # 3865 # 956 # 3020 @ 2696
Example Output: -1707

Example Input: 7206 # 7127 # 6754 # 5134 @ 7654 @ 855 @ 9709 # 9391 @ 5386
Example Output:
2404