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: 1614 @ 5794 # 2578
Example Output: 4830

Example Input: 6484 # 6042 @ 239 # 5161 # 7940 @ 2882 @ 8393 # 311 @ 6933
Example Output: 5477

Example Input: 3909 # 4736 @ 2593 @ 3592
Example Output:
5358