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: 2214 @ 2042 # 8931
Example Output: -4675

Example Input: 8157 # 6333 @ 7928
Example Output: 9752

Example Input: 4380 # 2415 # 3453
Example Output:
-1488