#include <bits/stdc++.h>

using namespace std;

int v[20],n,k,pos;
char s[50];

void bkt(int p){
    if(p==k+1){
        for(int i=1;i<=k;i++) printf("%d ",v[i]);
        printf("\n");
    }
    else for(int i=v[p-1]+1;i<=n;i++) v[p]=i, bkt(p+1);
}

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

    scanf("%d%d",&n,&k);
    bkt(1);

    return 0;
}