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: 2367 @ 4877 @ 8467 @ 5488 # 987 # 8899

Output: 11313


Input: Consider Input: 1021 # 2896 # 8239 # 5207 # 1962 # 5346

Output: -22629


Input: Consider Input: 8094 # 9035 @ 2727 @ 8721 # 652 # 6286 @ 6922 @ 2781 @ 382


Output: 13654