#include<stdio.h>
unsigned v[25],k,n;
void bc(unsigned p,unsigned x)
{
unsigned i;
    if(x==k+1)
    {
        for(i=1;i<=k;i++)
        printf("%u ",v[i]);
        printf("\n");
    }
    else
    {
for(i=p;i<=n;i++)
{
v[x]=i;
bc(i+1,x+1);
}
    }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
scanf("%u%u",&n,&k);
bc(1,1);
    return 0;
}