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: 1884 @ 3670 # 3893 @ 782 @ 3288 # 7463 @ 3214

Output: 1482


Input: Consider Input: 3816 @ 8163 # 9273 @ 2037 @ 8051 @ 826

Output: 13620


Input: Consider Input: 6541 @ 6289 @ 6656 @ 4316 # 8753 # 8033 # 5571 # 5183


Output: -3738