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: Consider Input: 2065 @ 3769 @ 9915 # 6270 @ 3929 @ 5328 @ 6079 @ 5250 @ 843

Output: 30908


Input: Consider Input: 9835 @ 3285 # 8713 # 3066

Output: 1341


Input: Consider Input: 8038 @ 9727 # 3750 # 2012 @ 8846 @ 7319 @ 3095 @ 4689


Output: 35952