#include <cstdio>
using namespace std;

int n,k,s[21];

void comb (int l) {
	int i;
	if (l==k){ for (i=1; i<=k; i++) printf ("%d ", s[i]); printf("\n"); }
	else {
		for (i=s[l]+1; i<=n; i++) {
			s[l+1]=i;
			comb(l+1);
		}
		
	}
}


int main () {
	

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