#include <iostream>
#include <stdio.h>
using namespace std;
int v[19],n,m;
void write()
{
    for(int i=1;i<=m;i++)
      printf("%d ",v[i]);
      printf("\n");
}
void GenCombinari(int k)
{
    if(k-1==m)
        write();
    else
    for(int i=v[k-1]+1;i<=n-m+k;i++)

    {
        v[k]=i;
        GenCombinari(k+1);
    }
}


int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&n,&m);
    GenCombinari(1);

}