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: 6557 @ 9368 # 307 @ 2982 # 8398 # 9241 # 4697 # 6790
Example Output: -10526

Example Input: 7376 @ 9212 @ 1713 # 9993
Example Output: 8308

Example Input: 1780 # 963 # 3786 # 8938 @ 5127 @ 4125 @ 8911 @ 9677
Example Output:
15933