#include <fstream>

using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int K,n,sol[1001];
void beck (int k)
{
    int i;
    if(k==K+1){for(i=1;i<=K;i++)g<<sol[i]<<" ";g<<'\n';}
    else if(k<=K)
    {
        for(i=sol[k-1]+1;i<=n;i++)
         {
             sol[k]=i;
             beck(k+1);
         }
    }
}

int main()
{
     f>>n>>K;
     beck(1);
    return 0;
}