#include<stdio.h>
int n,p;
int a[100];
void afis(int k)
{
int i;
for(i=1;i<=k-1;i++)
printf("%d ",a[i]);
printf("\n");
}
void back(int k)
{
int i;
if(k==p+1)
	afis(k);
else
for(i=a[k-1]+1;i<=n;i++)
{
	a[k]=i;
	back(k+1);
}
}
int main(void)
{
freopen("combinari.in","r",stdin);
freopen("combinari.out","w",stdout);
scanf("%d%d",&n,&p);
back(1);
return 0;
}