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: 4737 # 8536 @ 5633 # 1731 @ 3807 # 520 @ 1622
Example Output: 5012

Example Input: 9817 @ 5042 # 1724 @ 799 @ 685
Example Output: 14619

Example Input: 9712 @ 2185 @ 1600 # 4742 @ 9137 # 8322 # 604 @ 6975 # 4606
Example Output:
11335