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: 8157 # 6333 @ 7928
Example Output: 9752

Example Input: 531 # 4183 # 6445 # 8517 @ 4076 # 9925
Example Output: -24463

Example Input: 1917 @ 4353 @ 4321 @ 3060 @ 6681 @ 7890 @ 8148
Example Output:
36370