#include<stdio.h>
using namespace std;
int s[100],n,p;

void tipar(){for(int i=1;i<=p;i++)printf("%d ",s[i]);printf("\n");}

void back(int pas)
{
int i;
if(pas==p+1)tipar();
else
    {
    for(i=s[pas-1]+1;i<=n;i++)
        {
        s[pas]=i;
        back(pas+1);
        }
    }
}

int main()
{
freopen("combinari.in","r",stdin);
freopen("combinari.out","w",stdout);
scanf("%d%d",&n,&p);
back(1);
return 0;
}