#include <stdio.h>
#include <stdlib.h>

int n, k, v[18];

void comb(int p, FILE *g)
{
    int i;
    if(p == k)
    {
        for(i=1; i<=k; i++)
            fprintf(g, "%d ", v[i]);
        fputc('\n', g);
    }
    else
        for(i=v[p]+1; i<=n; i++)
            {
                v[p+1] = i;
                comb(p+1, g);
            }
}

int main()
{
    FILE *f, *g;
    f = fopen("combinari.in", "r");
    g = fopen("combinari.out", "w");
    if(!f)
        exit(1);
    if(!g)
        exit(2);
    fscanf(f, "%d", &n);
    fscanf(f, "%d", &k);
    printf("%d ", n);
    printf("%d \n", k);
    comb(0, g);
    fclose(f);
    fclose(g);
    return 0;
}