#include<bits/stdc++.h>
#define ll long long
using namespace std;

const int N = 3e5 + 10,mod = 1e9 + 7;
int n,m;
int a[N];
void solve()
{
	cout << "kangnaixin";
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);

    int T = 1;
    // cin >> T;
    while(T--)
    {
        solve();
    }
}