is the real Darcy Liu. However, there are many fake Darcys.
The real Darcy has one underscore in his username. Fake Darcys start with
darcy, contain a positive number of underscores, and end with
liu. Uppercase and lowercase do not matter, and usernames only contain alphanumeric characters and underscores.
Given a DMOJ username, print whether it is
The first line will contain the string of a username, .
other user depending on if they match the descriptions above.
Note that denotes the length of the string .
Sample Input 1
Sample Output 1
Sample Input 2
Sample Output 2
Sample Input 3
Sample Output 3