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: 3586 # 8254 # 4130 # 5426
Example Output: -14224

Example Input: 1482 # 6461 @ 804 # 8626 # 8564
Example Output: -21365

Example Input: 8038 @ 5493 @ 1166 @ 2238 # 9221 # 8318
Example Output:
-604