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

int n;
int v[17];
inline void back(int k, int j){
    if(k > 0){
        for(int i = 0; i < k ; ++i)
            printf("%d ", v[i]);
        printf("\n");
    }
    if(k == n) return;
    for(int i = j + 1; i <= n ; ++i){
        v[k] = i;
        back(k + 1, i);
    }
}
int main(){
    freopen("submultimi.in", "r", stdin);
    freopen("submultimi.out", "w", stdout);
    scanf("%d", &n);
    back(0, 0);
    return 0;
}