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: 8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
Example Output: 4929

Example Input: 4612 @ 9447 # 3444 @ 1269
Example Output: 11884

Example Input: 6333 # 3573 # 4282 # 3737 # 1716 # 8935 @ 8899 @ 4598
Example Output:
-2413