CF681A A Good Contest

Codeforces user' handle color depends on his rating — it is red if his rating is greater or equal to $ 2400 $ ; it is orange if his rating is less than $ 2400 $ but greater or equal to $ 2200 $ , etc. Each time participant takes part in a rated contest, his rating is changed depending on his performance. Anton wants the color of his handle to become red. He considers his performance in the rated contest to be good if he outscored some participant, whose handle was colored red before the contest and his rating has increased after it. Anton has written a program that analyses contest results and determines whether he performed good or not. Are you able to do the same?

The first line of the input contains a single integer $ n $ ( $ 1

Print «YES» (quotes for clarity), if Anton has performed good in the contest and «NO» (quotes for clarity) otherwise.

In the first sample, Anton has outscored user with handle Burunduk1, whose handle was colored red before the contest and his rating has increased after the contest. In the second sample, Applejack's rating has not increased after the contest, while both Fluttershy's and Pinkie\_Pie's handles were not colored red before the contest.