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: 353 # 9525 @ 9923 @ 4025 # 1922 @ 4751
Example Output: 7605

Example Input: 4867 # 7162 @ 1616 # 596 # 7845 @ 9594 # 3650 @ 6833
Example Output: 3657

Example Input: 8568 # 5876 # 6080 # 1818 @ 2035 # 1478
Example Output:
-4649