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: 5110 # 9803 @ 2485 # 1678
Example Output: -3886

Example Input: 9806 @ 7051 @ 6703 @ 4233 # 276
Example Output: 27517

Example Input: 367 # 4187 # 5815
Example Output:
-9635