#include <stdio.h>
FILE *f=fopen("combinari.in","r");
FILE *g=fopen("combinari.out","w");
int n,i,j,a[9],viz[9],k;
void tipar() {
	int i;
	for(i=1;i<=k;i++)
		fprintf(g,"%d ",a[i]);
	fprintf(g,"\n");
}
void back(int m) {
	int i,j;
	for(i=a[m-1]+1;i<=n;i++){
		a[m]=i;
		if(m==k)
				tipar();
		else
				back(m+1);
			}
}
int main() {
	fscanf(f,"%d%d",&n,&k);
	back(1);
	return 0;
}