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: 2167 # 8760 # 4771 # 8633 @ 7929 @ 9784 @ 6892
Example Output: 4608

Example Input: 6884 @ 145 # 2208 # 5356 # 3578 @ 606
Example Output: -3507

Example Input: 5545 @ 50 # 246 # 5302
Example Output:
47