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: 1446 @ 5354 # 6450 # 2821 @ 2258
Example Output: -213

Example Input: 8698 # 7378 # 9188 @ 5767 # 2935 # 2532 @ 7113
Example Output: -455

Example Input: 1157 # 6960 # 9000 @ 6488 # 4200 @ 5313 # 4326 @ 9834 # 8018
Example Output:
-9712