#include<stdio.h>
int n,k,sol[20];
void afis(){
	int i;
	for(i=0;i<k-1;++i)
		printf("%d ",sol[i]);
	printf("%d\n",sol[k-1]);
}
void back(int a,int b){
	int i;
	if(b==k){
		afis();
		return;
	}
	for(i=a+1;i<=n;++i){
		sol[b]=i;
		back(i,b+1);
	}
}
int main(){
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&k);
	back(0,0);
	
	fclose(stdin);
	fclose(stdout);
	return 0;
}