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: 4326 # 2636 @ 9431 # 1021 # 6603 # 2905 # 80 # 7174 # 3558

Output: -10220


Input: Consider Input: 9879 # 8585 @ 4078 # 6210 @ 7239 @ 3002 # 2455 @ 9817

Output: 16765


Input: Consider Input: 3429 # 2136 # 7239 @ 3478 # 6328 # 2859 # 7526 # 8903 @ 1522


Output: -26562