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: 1365 # 3902 @ 5909

Output: 3372


Input: Consider Input: 2020 @ 862 # 5780

Output: -2898


Input: Consider Input: 600 @ 1187 # 5300 @ 5790 # 1852 # 4897 @ 5153 @ 5205 # 1730


Output: 4156