#include <cstdio>
using namespace std;
int n,m,sol[20];
void afis()
    {
        for(int i=1;i<=m;i++)
            printf("%d ",sol[i]);
        printf("\n");
    }
void back(int k)
     {
         int i;
         if (k>m) afis();
         else
         for (i=sol[k-1]+1;i<=n;i++)
              {
                  sol[k]=i;
                  back(k+1);
              }
      }
int main()
    {
        freopen("combinari.in","r",stdin);
        freopen("combinari.out","w",stdout);
        scanf("%d%d",&n,&m);
        back(1);
    }