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: 1477 @ 6645 @ 6272 # 3080
Example Output: 11314

Example Input: 3393 # 1959 # 4338 # 8197 @ 3993 # 7625 # 7892
Example Output: -22625

Example Input: 243 @ 7865 # 7322 @ 7584 # 5378 @ 2687 @ 9846
Example Output:
15525