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: 995 @ 6856 @ 867 # 7415 # 9581

Output: -8278


Input: Consider Input: 9092 # 9147 # 3034 # 3724 @ 4887 @ 581 @ 3808 # 5611 # 901


Output: -4049