#include <iostream>
#include <cstdio>

using namespace std;
int n,k,a[200];
void combooo(int cfr){
	if(cfr==k){
		for(int i=1;i<=k;i++)cout<<a[i]<<' ';
		cout<<'\n';
	}
	else {
		for(int j=a[cfr]+1;j<=n;j++){
			a[cfr+1]=j;
			combooo(cfr+1);
		}
	}
}

int main(){
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	cin>>n>>k;
	combooo(0);
}