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: 8929 # 6145 @ 8551 # 1836 @ 9159

Output: 18658

Input: Consider Input: 6860 @ 2810 # 1038

Output: 8632

Input: Consider Input: 7669 @ 9604 # 7740 @ 633
Output: 10166