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: 7016 @ 5245 # 3568 # 3445 # 5282 # 7568

Output: -7602


Input: Consider Input: 5571 @ 5729 # 6405 # 526 # 1330

Output: 3039


Input: Consider Input: 6803 # 2635 @ 6938 @ 5887 @ 7868 @ 6089 # 2241


Output: 28709