#include<stdio.h>
#define nmax 20
int n,k;
int s[nmax];

void read()
{
     freopen("combinari.in","r",stdin);
     freopen("combinari.out","w",stdout);
     scanf("%d%d",&n,&k);
}

void print()
{
      int i;
      for(i=1;i<=k;i++)
         printf("%d ",s[i]);
      printf("\n");
}

void bec( int p)
{
      for(int i=s[p-1]+1;i<=n;i++)
      {
         s[p]=i;
         if(p==k)
            print();
         else
            bec(p+1);
      }
}


int main()
{
     read();
     bec(1);
     return 0;
}