#include <stdio.h>

#define SIZE 16

static int elem[SIZE+1];

static void subm(int n, int l)
{
    int i;

    if (l > 0) {
        for (i = 1; i <= l; i++) {
            printf("%d%c", elem[i], " \n"[i == l]);
        }
    }

    for (i = elem[l] + 1; i <= n; i++) {
        elem[l + 1] = i;
        subm(n, l + 1);
    }
}

int main(void)
{
    int n;

    freopen("submultimi.in", "r", stdin);
    freopen("submultimi.out", "w", stdout);

    scanf("%d", &n);

    subm(n, 0);

    return 0;
}