#include <stdio.h>
#define Nmax 18

int n,m,p[Nmax];

void back_comb(int k)
{ int i,j;
if (k==m+1)
	{
	for (i=1;i<=m;i++)
	printf("%d ",p[i]);
	printf("\n");
	}
	else for (j=p[k-1]+1;j<=n;j++);
	    {
	    p[k]=j;
	    back_comb(k+1);
	    }
}

int main()
{
freopen("combinari.in","r",stdin);
freopen("combinari.out","w",stdout);

scanf("%d %d",&n, &m);
back_comb(1);
return 0;
}