#include<stdio.h>
#include<stdlib.h>

int v[20],n,k;

void print( int k1 ){
	int i;
	for( i=1; i<=k1; i++ )
		printf("%d ",v[i] );
	printf( "\n" );
}

void generatorCombinari( int k1 ){
	int i;
	if( k == k1 ) print( k1 );
	else{
		for( i=v[k1]+1; i<=n; i++ ){
			v[k1+1]=i;
			generatorCombinari(k1+1);
		}
	}
}

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