Difficult problem

At ADA University (and not only) students sometimes copy off their homework. The teacher knows that they always copy from Huseyn. How does he define it? Very simple. He looks at Huseyn's number of submissions for the task, and if it is three or more times bigger than the number of student submissions, then the student cheated.

Based on the number of submissions by Huseyn and the student, determine if there was a cheating case.

Input

Two integers $a$ and $b$ — the number of submissions for Huseyn and the student.

Output

Print "Cheated" if the student cheated from Huseyn and "Done by himself" if the student completed the task by himself.

Examples