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: 4809 # 9135 # 3011 # 4393 # 1039 # 3878 @ 1559 # 3798
Example Output: -18886

Example Input: 8524 # 5976 # 1534 @ 266 # 6452 @ 3945 # 2305
Example Output: -3532

Example Input: 6266 # 1040 # 4144
Example Output:
1082