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: 6467 # 8145 # 9388 # 9232
Example Output: -20298

Example Input: 8341 @ 9380 @ 1335 # 7889 # 5698
Example Output:
5469