//combinari
#include<stdio.h>

FILE *f,*g;
int n,k,s[15];

void afis(){
	for(int i=1;i<=k;i++) fprintf(g,"%d ",s[i]);
	fprintf(g,"\n");
}

void gen(int z){
	if(z>k) { afis(); return; }
	for(int i=s[z-1]+1;i<=n;i++) { s[z]=i;gen(z+1); }
}


int main(){

	f = fopen("combinari.in","rt");
	g = fopen("combinari.out","wt");

	fscanf(f, "%d%d", &n,&k);

	gen(1);

	return 0;
}