#include <fstream>
using namespace std;

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

int a[18], n, m;

void Back( int x );

int main()
{
    fin >> n >> m;
    Back( 1 );
    fin.close();
    fout.close();
    return 0;
}

void Back( int x )
{
    for( int i = a[x-1]+1; i <= n; ++i )
    {
        a[x] = i;
        if( x == m )
        {
            for( int i = 1; i <= m; ++i )
                fout << a[i] << ' ';
            fout << '\n';
        }
        else
            Back( x + 1 );
    }
}