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: 6860 @ 2810 # 1038

Output: 8632


Input: Consider Input: 64 # 5994 @ 8659 # 885

Output: 1844


Input: Consider Input: 1999 # 5055 @ 6736 # 8829 @ 7010 # 2968 # 259 @ 5904


Output: 4538