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: 4101 @ 2536 # 502
Example Output: 6135

Example Input: 4449 @ 4019 @ 7637
Example Output: 16105

Example Input: 3171 # 3678 # 3096 # 5842 # 3188
Example Output:
-12633