#include <iostream>
#include <stdio.h>

using namespace std;
int n, m, sol[20];

void bt(int k)
{
    if (k==m+1)
    {
        for (int i=1; i<k; i++)
            printf("%d ", sol[i]);
        printf("\n");
        return;
    }
    for (int v=sol[k-1]+1; v<=n; v++)
    {
        sol[k]=v;
        bt(k+1);
    }
}

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