#include<stdio.h>

long i, n, m, a[21], uz[21];
FILE *fin, *fout;

void bkt(long x)
{
	if(x == m + 1)
	{
		for(i = 1; i <= m; i++)
			fprintf(fout, "%ld ", a[i]);

		fprintf(fout, "\n");

		return;
	}
	else
	{
	    for(i = a[x - 1] + 1; i <= n; i++)
	    {
	       a[x] = i;
	       back(x + 1);
	    }

	}
}

int main()
{
	fin = fopen("combinari.in", "rt");
	fout = fopen("combinari.out", "wt");

	fscanf(fin, "%ld %ld", &n, &m);

	bkt(1);

	return 0;
}