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: 2367 @ 4877 @ 8467 @ 5488 # 987 # 8899
Example Output: 11313

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

Example Input: 8280 # 2607 # 4185 # 9243 @ 9839
Example Output:
2084