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: 8760 @ 4583 # 2942 # 3854 # 5061 @ 31 # 5965

Output: -4448


Input: Consider Input: 1614 @ 5794 # 2578

Output: 4830


Input: Consider Input: 1380 @ 6582 # 4036


Output: 3926