#include <fstream>
using namespace std;
int a[20];
int main()
{
    ifstream fin("combinari.in");
    int n,k,i,x,j;
    bool ok=1;
    fin>>n>>k;
    fin.close();
    ofstream fout("combinari.out");
    for(i=1;i<=n;i++)
        a[i]=i;
    while(ok)
    {
        for(i=1;i<=k;i++)
            fout<<a[i]<<" ";
        fout<<"\n";
        i=k;
        x=n;
        while(a[i]==x)
            i--,x--;
        if(i==0)
            ok=0;
        else
        {
            a[i]++;
            for(j=i+1;j<=k;j++)
                a[j]=a[j-1]+1;
        }
    }
    return 0;
}