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: 6050 # 5266 # 3005

Output: -2221


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

Output: 9476


Input: Consider Input: 9097 @ 4148 # 2958


Output: 10287