#include <iostream>
#include <fstream>
#define nmax 500000
using namespace std;
int n,k,mx,s,v[nmax],p;
int main()
{
    ifstream f("secventa.in");
    ofstream g("secventa.out");
    f>>n>>k;
    for (int i=1;i<=n;i++)
    {
        f>>v[i];
    }
    for (int i=1;i<=n;i++)
    {
        for (int j=1;j<=i+2;j++)
        {
            if (v[j]>mx) {mx=v[j];p=j;}
        }
        if (i>p) g<<v[i]<<" "<<v[i-1]<<" "<<v[i-2];
    }
    return 0;
}