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: 4460 @ 9143 # 6720 # 8379 @ 1636 # 6526

Output: -6386


Input: Consider Input: 9276 @ 7324 @ 3048 # 8186 # 4920 # 2964

Output: 3578


Input: Consider Input: 9610 # 2823 @ 2644


Output: 9431


