`\color{pink}{\text{Maz}}`

#include <bits/stdc++.h>
using namespace std;
long long n;
int main()
{
  ios::sync_with_stdio(false);
  cin.tie(0);cout.tie(0);
  cin >> n;
  if(n%400==0||((n%4==0)&&(n%100!=0))){cout<<"Nam nhuan";return 0;}
  else{cout<<"Khong la nam nhuan";return 0;}
  return 0;
}

/*   /\_/\
    (= ._.)
    / >0  \>1
*/
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

ll n;
bool check (ll x)
{
if (x % 400 == 0) return true;
if (x % 4 == 0 and x % 100 != 0) return true;
return false;
}
int main()  
{

  ios::sync_with_stdio(false);
  cin.tie(0);

  cin >> n;
  if (check(n)) cout << "Nam nhuan";
  else cout << "Khong la nam nhuan";
  return 0;
}