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: 2806 # 6120 @ 8567 @ 1946 @ 8985 # 9834 # 368 # 454 @ 5455

Output: 10983


Input: Consider Input: 7894 @ 7649 # 4792

Output: 10751


Input: Consider Input: 2267 @ 3874 @ 8938 # 5055 @ 447


Output: 10471