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: 8625 @ 3267 # 2323 # 3569

Output: 6000


Input: Consider Input: 6312 @ 1446 # 1616 @ 6758 # 9137 @ 6041

Output: 9804


Input: Consider Input: 2130 @ 4563 @ 7763 # 1270 # 9833 @ 6731


Output: 10084