Definition: 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
Input: 8090 @ 4969 @ 2115 # 7388 @ 3175 @ 8508 # 9849 # 5445 @ 478
Output:
4653