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: 1446 @ 5354 # 6450 # 2821 @ 2258
Example Output: -213

Example Input: 4494 # 3982 # 3562 @ 341 @ 5494 # 3299 # 7182 # 8494
Example Output: -16190

Example Input: 229 # 9085 @ 9388
Example Output:
532