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: 9504 # 5838 @ 6008 @ 5759 @ 2689

Output: 18122


Input: Consider Input: 1327 # 8233 # 8048 # 194 @ 2192 @ 1877 # 3427 # 3364 # 6008

Output: -23878


Input: Consider Input: 3038 # 2322 @ 3691 @ 734 # 9001 @ 7146


Output: 3286