#P3401. Two Sets
Two Sets
当前没有测试数据。
Description
Your task is to divide the numbers 1,2,…,n into two sets of equal sum.Input Format
The only input line contains an integer n.Output Format
Print "YES", if the division is possible, and "NO" otherwise.
After this, if the division is possible, print an example of how to create the sets. First, print the number of elements in the first set followed by the elements themselves in a separate line, and then, print the second set in a similar way.
7
YES
4
1 2 4 7
3
3 5 6
Hint
1≤n≤106
Input:
Output:
Example 2
6
NO