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: 126 @ 8943 @ 2476 # 7766 @ 2271 # 7213 @ 6602 # 8086 @ 2129

Output: -518


Input: Consider Input: 473 # 2568 @ 9771 # 2525 @ 3277 @ 261 # 8230 @ 6021

Output: 6480


Input: Consider Input: 2027 # 965 # 9916 @ 7199 @ 844 @ 9780


Output: 8969