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: 7178 # 2086 # 1606 @ 4624 @ 4559 # 4855

Output: 7814


Input: Consider Input: 8932 # 2337 @ 825 # 8463 @ 528

Output: -515


Input: Consider Input: 7576 @ 7212 # 9069


Output: 5719