#include <stdio.h>

FILE *f1 = fopen("combinari.in","r");
FILE *f2 = fopen("combinari.out","w");

int n,m;
int v[19];

void back(int k){
	int i;
	
	if(k == m + 1){
		for(i=1; i<=m; i++)
			fprintf(f2,"%d ",v[i]);
		fprintf(f2,"\n");
		return;
	}
	
	for(i=v[k-1]+1; i<=n; i++){
		v[k] = i;
		back(k + 1);
	}	
}

int main(){
	
	fscanf(f1,"%d%d",&n,&m);
	
	back(1);	
	
	fclose(f1);
	fclose(f2);
	
	return 0;
}