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: 4532 @ 5773 @ 2346 @ 6961 # 8280

Output: 11332


Input: Consider Input: 3697 @ 918 # 7675 # 32 # 9690 # 5606 # 7936


Output: -26324