#include <cstdio>
#include <iostream>
#include <bitset>
using namespace std;

int c,l;
short sol[19];
bitset<19> ut;

void bkt(int pas,int lst)
{
    int i;
    if(pas==l+1) { for(i=1;i<=l;i++) printf("%d ",sol[i]);  printf("\n"); }
    else
        for(i=lst+1;i<=c;i++)
        {
            sol[pas]=i;
            bkt(pas+1,i);
            sol[pas]=0;
        }
}

int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&c,&l);
    bkt(1,0);
    fclose(stdin);
    fclose(stdout);
    return 0;
}