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: 463 @ 7844 # 9816
Example Output: -1509

Example Input: 8625 # 2240 # 8544 @ 9905 @ 7588 @ 9161 @ 3204 @ 4214 # 1175
Example Output: 30738

Example Input: 8407 @ 4223 @ 4286 @ 2814 # 8255
Example Output:
11475

