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: 8227 # 7725 @ 669 @ 489 @ 6499 @ 2486

Output: 10645


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

Output: 3039


Input: Consider Input: 9795 # 5679 @ 2511


Output: 6627