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: 9074 # 3474 @ 2553 @ 8125 # 7981 # 1438 @ 9668

Output: 16527


Input: Consider Input: 6055 # 1440 # 3272 # 5643 @ 150 @ 7658 # 8655 @ 8463 # 8156

Output: -4840


Input: Consider Input: 5253 @ 2450 @ 1316 @ 9889 @ 6449 @ 4948


Output: 30305