#include <fstream>

using namespace std;

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

int n,k,x[20];
void read();
void comb(int k);
void write();
int main()
{
    read();
    comb(1);
    return 0;
}

void read()
{
    fscanf(f,"%d%d",&n,&k);
}

void comb(int m)
{
    int i=0;
    if (m==k+1)
        write();
    else
    {
        for (i=x[m-1]+1;i<=n;i++)
            x[m]=i,comb(m+1);
    }
}

void write()
{
    for (int i=1;i<=k;i++)
        fprintf(g,"%d ",x[i]);
    fprintf(g,"\n");
}