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: 1737 # 3662 # 9496 @ 694
Example Output: -10727

Example Input: 6348 # 2614 @ 3559 @ 9670 # 1137 # 9684
Example Output: 6142

Example Input: 7077 # 1110 # 6886 @ 830 # 2005 # 2603 # 9822
Example Output:
-14519