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: 1380 @ 6582 # 4036

Output: 3926


Input: Consider Input: 7217 @ 2604 @ 9974 @ 8133 @ 8987 # 6381 # 7662

Output: 22872


Input: Consider Input: 8419 @ 6686 # 5350


Output: 9755


