#include <fstream>

using namespace std;
ifstream cin("submultimi.in");
ofstream cout("submultimi.out");
int n,v[1001],ok;


int main()
{
    cin>>n;


    while(1<2){
            ok=0;
    for(int i=1;i<=n;i++)
        if(v[i]==0)
    {
        v[i]=1;
        ok=1;
        break;
    }
    else
        v[i]=0;

        if(ok==1){
            for(int i=1;i<=n;i++)
            if(v[i]==1)
            cout<<i<<" ";
            cout<<endl;
        }
        else
            break;


    }
    return 0;
}