#include <cstdio>

using namespace std;

short int N,K,Vector[19];

inline void Combinari(short int c)
{
    if(c==K+1)
    {
        for(short int i=1; i<=K; i++)
            printf("%d ",Vector[i]);
        printf("\n");
    }
    else for(Vector[c]=Vector[c-1]+1; Vector[c]<=N; Vector[c]++)
        Combinari(c+1);
}

int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&N,&K);
    Combinari(1);
}