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

ifstream fin("test.in");
ofstream fout("test.out");

int n, sub[101];

void subsets(int element, int len){
    if (element == n + 1){
        for (int i = 0; i < len; ++i) {
            fout << sub[i] << " ";
        }
        fout << "\n";
        return;
    }
    sub[len] = element;
    subsets(element + 1, len + 1);
    subsets(element + 1, len);
}

int main() {
    fin >> n;
    subsets(1,0);
    return 0;
}