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: 4071 # 2406 @ 1349 @ 5528 @ 7426 @ 2448 # 1981 # 7844

Output: 8591


Input: Consider Input: 9318 @ 858 @ 9508 @ 5403 # 5141 @ 6503 @ 9412

Output: 35861


Input: Consider Input: 3292 # 8024 # 8746 # 8375 # 8893


Output: -30746