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: 5098 # 2466 @ 6132 # 7008 @ 2142 # 5650 @ 531

Output: -1221


Input: Consider Input: 8625 @ 3267 # 2323 # 3569

Output: 6000


Input: Consider Input: 1566 @ 1639 # 814 # 5278 @ 1717 # 4304 # 6735 @ 1407


Output: -10802