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: 1262 # 4309 # 2911

Output: -5958


Input: Consider Input: 381 # 4084 # 9377 # 3092

Output: -16172


Input: Consider Input: 6946 # 1705 @ 8511 # 9266 @ 276


Output: 4762