#include <iostream>
using namespace std;
int n, sir[19];
void bkt(int k, int lg) {
    if (lg == k) {
        for (int i = 1; i <= k; i++)
            cout << sir[i] << ' ';
        cout << '\n';
        return;
    }
    for (int i = sir[lg] + 1; i <= n; i++) {
        sir[lg + 1] = i;
        bkt(k, lg + 1);
    }
}
int k;
int main()
{
    cin >> n >> k;
    bkt(k,0);
    return 0;
}