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: 64 # 5994 @ 8659 # 885
Example Output: 1844

Example Input: 6055 # 1440 # 3272 # 5643 @ 150 @ 7658 # 8655 @ 8463 # 8156
Example Output: -4840

Example Input: 2065 @ 2103 @ 1800
Example Output:
5968