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: 1864 @ 5416 @ 9408 @ 9513
Example Output: 26201

Example Input: 3839 # 8343 # 3366 @ 9432 @ 4687 @ 2441 # 89
Example Output: 8601

Example Input: 9434 @ 6204 # 1650 @ 7148
Example Output:
21136