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: 5520 @ 1174 # 2584 # 6276 # 6659 @ 8281 # 5456 @ 1602 @ 4624

Output: 226


Input: Consider Input: 5191 # 7400 @ 7319 # 5932 @ 662 @ 1546

Output: 1386


Input: Consider Input: 937 @ 2642 @ 5085 @ 508 # 7619 @ 9361


Output: 10914