#include <iostream>

using namespace std;


int m,n,stiva[20];

void citire()
{

    scanf("%d%d",&n,&m);
}


void bk(int k)
{
if(k==m+1)
	{
		for(int j=1;j<=m;j++)
			printf("%d ",stiva[j]);
        printf("\n");

	}
else
	{
	    for(int i=stiva[k-1]+1;i<=n;i++)
            {
                stiva[k]=i;
                bk(k+1);
            }


	}
}


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

    citire();

   bk(1);

    return 0;
}