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: 5175 # 1386 # 5328 # 898 @ 5361 # 376 @ 1286 @ 861

Output: 4695


Input: Consider Input: 7803 @ 6524 @ 7077 # 1627 # 3959

Output: 15818


Input: Consider Input: 1296 # 2619 @ 6971


Output: 5648