#include<iostream>
#include<stdio.h>
using namespace std;
FILE *f,*g;
int n,k,sol[100];
int back(int l)
{int i;
if(l==k+1)
{for(i=1;i<=k;i++)
    fprintf(g,"%d ",sol[i]);
    fprintf(g,"\n");
}
else
{if(l>1)
sol[l]=sol[l-1];
else
    sol[l]=0;
while(sol[l]<n-k+l)
   {sol[k]++;
   back(l+1);
}
}
}
int main()
{
    f=fopen("combinari.in","r");
    g=fopen("combinari.out","w");
    fscanf(f,"%d%d",&n,&k);
    back(1);
}