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: 7027 @ 2812 @ 3081 @ 8945 # 18 # 3273 @ 222 # 6452 # 5838

Output: 6506


Input: Consider Input: 5992 @ 7637 # 7427 @ 1102 @ 677 @ 9685 @ 6972

Output: 24638


Input: Consider Input: 9114 # 6533 # 2633 @ 5302 # 6425 # 2018 # 7042


Output: -10235