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: 6060 @ 2846 @ 4249 @ 6831 @ 5191 @ 3711 # 352 # 2921 @ 5640

Output: 31255


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

Output: -9339


Input: Consider Input: 1378 # 308 @ 1068 @ 5101 # 5243


Output: 1996