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: 2367 @ 4877 @ 8467 @ 5488 # 987 # 8899
Example Output: 11313

Example Input: 3275 # 8948 # 7571 @ 9566 @ 9874 @ 3226
Example Output: 9422

Example Input: 9938 # 267 # 6696 # 8186 # 5729 # 8517 # 6331 @ 7607
Example Output:
-18181