#include <bits/stdc++.h>
#define infile "combinari.in"
#define outfile "combinari.out"

using namespace std;
int n, k, v[30];

void solve(int p)
{
    if (p == k)
    {
        for (int i = 1; i <= k; i++)
        {
            cout << v[i] << " ";
        }
        cout << '\n';
    }
    else
    {
        for (int i = 1 + v[p]; i <= n; i++)
        {
            v[p + 1] = i;
            solve(p + 1);
        }
    }
}

int main()
{
    freopen(infile, "r", stdin);
    freopen(outfile, "w", stdout);

    scanf("%d %d", &n, &k);
    solve(0);

    fclose(stdin);
    fclose(stdout);
    return 0;
}