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: 5631 # 7224 @ 9746 # 8532 @ 8996 # 3971 # 8538 @ 5270 # 9789
Example Output: -8411

Example Input: 6844 @ 1340 # 4174 # 5664 @ 4911 # 5241
Example Output: -1984

Example Input: 1829 # 2066 # 195 # 542 # 9421 @ 1220 # 261 @ 9087
Example Output:
-349