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: 9546 @ 5515 @ 6740 # 2069 # 921 # 9110 # 5067 # 3917 # 6434
Example Output: -5717

Example Input: 3782 @ 4127 # 1265 # 1395 @ 2430 @ 6990 @ 8573 @ 8170
Example Output: 31412

Example Input: 9681 # 2775 @ 7020 @ 6979
Example Output:
20905