#include <cstdio>
#include <cstring>
using namespace std;
const int NMAX = 20;
bool v[NMAX];
void afis(int n)
{
    for(int i = 1;i <= n; ++i) {
        if(v[i] == 1) {
            printf("%d ", i);
        }
    }
    printf("\n");
}

int main()
{
    int n, i;
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);
    scanf("%d", &n);
    v[1] = 1;
    while(!v[n + 1]) {
        afis(n);
        for(i = 1;i <= n && v[i] == 1; ++i) {
            v[i] = 0;
        }
        v[i] = 1;
    }
    return 0;
}