#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    int n,l,c,m[32640][2],i=1,k,o,v[2]= {1,2};
    ifstream g("lacate.in");
    g>>n;
    ofstream h("lacate.out");
    l=n*(n-1)/2;
    c=n-1;
    h<<l<<" "<<c<<endl;



    for (k=0;k<l;k++)
    {
        for (o=0;o<=1;o++)
        {
            m[k][o]=v[o];
            if (m[k][o]==i)
            {
                h<<k+1<<" ";
            }
        }
        v[1]++;
        if (v[1]>n)
        {
            v[0]++;
            v[1]=v[0]+1;

        }
    }
    h<<endl;
    for (i=2;i<=n;i++)
    {


     for (k=0;k<l;k++)
    {
        for (o=0;o<=1;o++)
        {
            if (m[k][o]==i)
            {
                h<<k+1<<" ";
            }
        }

        }
        h<<endl;
    }


    return 0;
}