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: 3147 @ 2272 # 9050

Output: -3631


Input: Consider Input: 4565 @ 7065 # 5397

Output: 6233


Input: Consider Input: 6161 # 9572 @ 5105 @ 8304 # 6859 @ 8067


Output: 11206