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: 8769 @ 9595 # 7775 # 3412 # 7 @ 4689 # 4368
Example Output: 7491

Example Input: 7027 @ 2812 @ 3081 @ 8945 # 18 # 3273 @ 222 # 6452 # 5838
Example Output: 6506

Example Input: 2107 @ 1424 @ 8578 @ 8386 # 8191 @ 1961 @ 3245 # 5627
Example Output:
11883