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

Ex Input:
7729 # 7280 @ 5072 @ 3806 # 6060

Ex Output:
3267


Ex Input:
6015 # 4758 @ 9332 @ 3048 @ 2544 # 1136 # 4093 @ 2060 @ 570

Ex Output:
13582


Ex Input:
3517 @ 9708 @ 8898 # 5507 @ 4578 # 1917 # 6254

Ex Output:

13023