#include <cstdio>

int v[19],n=0,k=0;

int f(int x)
{
    int i;
    if (x==k+1)
    {
        for (i=1; i<k+1; ++i)
            printf("%d ",v[i]);
        printf("\n");
    }
    else
    {
        for (i=v[x-1]+1; i<n+1; ++i)
        {
            v[x]=i;
            f(x+1);
        }
    }
}

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