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: 5193 # 9816 # 9875 # 1011 @ 1147 @ 5023

Output: -9339


Input: Consider Input: 1516 # 4681 # 225 # 3393 @ 1212 @ 367

Output: -5204


Input: Consider Input: 4234 @ 5936 # 1078 # 9883


Output: -791