#include <cstdio>
using namespace std;
int v[20],n,i,k,m;
void af() {
	for (int j=1;j<=m;j++) printf("%d ",v[j]);printf("\n");
}
void comb (int k) {
	if (k>m) af();
	else {
		for (int i=v[k-1]+1;i<=n-m+k;i++) {
			v[k]=i;
			comb(k+1);
		}
	}
}
int main() {
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&m);
	comb(1);
	return 0;
}