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: 8050 # 8744 @ 5247 # 7761 # 8743

Output: -11951


Input: Consider Input: 9074 # 3474 @ 2553 @ 8125 # 7981 # 1438 @ 9668

Output: 16527


Input: Consider Input: 1852 @ 1870 # 6341 # 6836 # 1537


Output: -10992