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: 5098 # 2466 @ 6132 # 7008 @ 2142 # 5650 @ 531
Example Output: -1221

Example Input: 8571 # 5985 @ 8912
Example Output: 11498

Example Input: 3892 # 2036 @ 8604 @ 9675 # 4321 @ 8899
Example Output:
24713