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: 6348 # 2614 @ 3559 @ 9670 # 1137 # 9684

Output: 6142


Input: Consider Input: 281 @ 7793 @ 5184 # 2962 @ 4511

Output: 14807


Input: Consider Input: 5369 @ 6659 # 6886


Output: 5142