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: 5245 # 2258 @ 1333 # 9626 @ 7040 @ 9804
Example Output: 11538

Example Input: 9049 # 6438 @ 8686 # 910 # 3586
Example Output: 6801

Example Input: 4249 # 9021 # 6894
Example Output:
-11666