#include <cstdio>

int a[32];
int n, K;

inline void afis()
{
    for(int i=1;i<=K;++i)printf("%d ", a[i]);
    printf("\n");

}
inline void back(int k)
{
    if(k==K+1)afis();
    else
    {
	for(int i=a[k-1]+1;i<=n;++i)
	{
	    a[k]=i;
	    back(k+1);
	}
    }
}

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

    return 0;
}