#include <stdio.h>
#define n 19

using namespace std;

FILE *f=fopen("combinari.in","r");
FILE *g=fopen("combinari.out","w");

int N,K,s[n];

void a()
{
    for(int i=1;i<=K;i++)
     fprintf(g,"%d ",s[i]);
    fprintf(g,"\n");
}

void b(int k)
{
    for(int i=s[k-1]+1;i<=N;i++)
    {
        s[k]=i;
        if(k==K) a();
        else b(k+1);
    }
}

int main()
{
    fscanf(f,"%d%d",&N,&K); b(1);
    return 0;
}