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: 5052 # 6923 @ 1011

Output: -860


Input: Consider Input: 1709 # 2270 # 1077 # 9681

Output: -11319


Input: Consider Input: 9255 @ 7467 @ 4436 @ 126 # 3569 # 8239


Output: 9476