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: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392

Output: -3306


Input: Consider Input: 9110 # 7535 @ 8117 # 9919 @ 6813 @ 187 # 5187

Output: 1586


Input: Consider Input: 6608 # 6335 # 3470 # 7032 # 3473 # 1750


Output: -15452