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: 1767 @ 7166 @ 1543 @ 1185 @ 9966 # 6628
Example Output: 14999

Example Input: 7671 # 7716 @ 5899 @ 2520 # 497 # 24 # 16 # 840 # 9556
Example Output: -2559

Example Input: 5332 @ 6014 # 497 @ 5552 # 1681 @ 5651 # 887 # 6647 @ 9367
Example Output:
22204