B. Was it Rated?time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputInputThe only line of the input contains a single integer n (1 \leq n \leq 25).ExamplesInput
1
Output
YES
Input
15
Output
NO
 
1

YES 
['*special problem', '*special problem', '*special problem', 'brute force', 'implementation']