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: 64 # 5994 @ 8659 # 885

Output: 1844


Input: Consider Input: 1864 @ 5416 @ 9408 @ 9513

Output: 26201


Input: Consider Input: 333 @ 1379 # 9227 # 5458


Output: -12973