#include<stdio.h>

int n,m,sol[20];

void afisare()
{
	for(int i=1;i<=m;++i)
		printf("%d ",sol[i]);
	printf("\n");
}

void back(int k)
{
	if(k==m+1)
	{
		afisare();
		return;
	}
	for( int i=sol[k-1]+1;i<=n;++i)
	{
		sol[k]=i;
		back(k+1);
	}
}

int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&m);
	back(1);
	return 0;
}