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: 8451 # 7523 @ 454 @ 459 @ 182 @ 6187 # 2835
Example Output: 5375

Example Input: 958 # 263 # 1097 @ 3868 # 3982
Example Output: -516

Example Input: 2671 @ 1333 # 4750 # 9388 # 2800 @ 194 @ 2398 @ 8042 @ 8671
Example Output:
6371