#include <fstream>

using namespace std;

int x[30], f[11];
int n, m;

ifstream fin("combinari.in");
ofstream fout("combinari.out");


void back(int nivel) {
    if (nivel > m) {
        for (int i=1;i<=m;i++)
            fout<<x[i]<<" ";
        fout<<"\n";
    } else {
        for (int i=x[nivel-1]+1;i<=n;i++) {
            x[nivel] = i;
            back(nivel+1);
        }
    }
}

int main()
{
    fin>>n>>m;
    back(1);
    return 0;
}