#include <stdio.h>

int n, A[16];

void generate(int k)
{
    if (k < n)
    {
        for (int i = A[k-1] + 1; i <= n; ++i)
        {
            A[k] = i;
            
            for (int j = 0; j <= k ; ++j)
            {
                printf("%d ", A[j]);
            }
            printf("\n");
            
            generate(k+1);
        }
    }
}

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

    scanf("%d", &n);
    
    for (int i = 1; i <= n; ++i)
    {
        A[0] = i;

        printf("%d\n", A[0]);

        generate(1);
    }
    
    return 0;
}