#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=1+sol[k-1] ; i<=n-m+k ; ++i)
	{
		sol[k]=i;
		back(k+1);
	}
	/*
	for(int i=1;i<=n;++i)
		if(marc[i]==0)
		{
			marc[i]=1;
			sol[k]=i;
			back(k+1);
			marc[i]=0;
		}
		*/
}

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