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: 8780 # 5826 # 420 @ 8814 @ 5786 # 1725
Example Output: 15409

Example Input: 6853 # 3523 @ 1895 @ 6916 @ 2795 # 8802 # 3074 # 5622 @ 956
Example Output: -1606

Example Input: 112 # 530 # 8423 @ 3441 # 9619
Example Output:
-15019