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: 353 # 799 @ 4824 # 3212 @ 1811 @ 752
Example Output: 3729

Example Input: 1569 # 724 @ 3737 @ 6220 # 1360 # 172 # 1027 # 3566 # 9663
Example Output: -4986

Example Input: 9519 @ 2889 @ 5462 @ 77
Example Output:
17947