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: 3337 @ 9906 @ 9733 # 853 @ 5075 # 2064 @ 9450 # 3886
Example Output: 30698

Example Input: 2738 # 5562 @ 4529 @ 5438 @ 1799
Example Output: 8942

Example Input: 1970 # 213 @ 9217 # 6736 @ 7549 @ 3781
Example Output:
15568