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

int n, p;
int s[20];

void afisare()
{
    for (int i=1; i<=p; i++)
        printf("%d ",s[i]);
    printf("\n");
}

void back(int k)
{
    if (k == p+1)
        afisare();
    else
        for (int i=s[k-1]+1; i<=n; i++)
        {
            s[k] = i;
            back(k+1);
        }
}

int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d",&n, &p);
    back(1);
    return 0;
}