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: 995 @ 6856 @ 867 # 7415 # 9581
Example Output: -8278

Example Input: 2763 @ 869 # 8299
Example Output: -4667

Example Input: 4546 # 6895 @ 6331 # 191 # 1950 # 9470 @ 9577
Example Output:
1948

