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: 5010 # 2117 @ 6121 # 6244 @ 1089 @ 5871

Output: 9730


Input: Consider Input: 7021 # 2043 @ 7414 # 2632 @ 2939 @ 8718 @ 2731

Output: 24148


Input: Consider Input: 2647 # 3942 @ 9178 @ 4267


Output: 12150


