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: 7982 # 9393 @ 981 @ 2884 # 1556 @ 752 # 322 # 3235
Example Output: -1907

Example Input: 2370 # 437 # 89 # 6625 # 2724 @ 1767 # 2848 @ 3753
Example Output: -4833

Example Input: 2285 @ 1970 @ 4720
Example Output:
8975