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: 837 @ 118 @ 1503 # 3288 @ 6669 # 1394
Example Output: 4445

Example Input: 9549 @ 21 # 6714 # 2406 # 2527 # 8527 @ 1769
Example Output: -8835

Example Input: 7554 @ 7690 # 8429 @ 7846 # 8076
Example Output:
6585