#include <iostream>
#include <fstream>
#include <vector>
#include <cmath>

using namespace std;

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

int n, p, sol[105];

void afisare()
{
    for(int i=1; i<=p; ++i)
        fout<<sol[i]<<" ";
    fout<<"\n";
}
void back(int k)
{
    if(k==p+1)
    {
        afisare();
        return;
    }
    for(int i=sol[k-1]+1; i<=n-p+k; ++i)
    {
        sol[k]=i;
        back(k+1);
    }
}
int main()
{
    fin>>n>>p;
    back(1);
    return 0;
}