# include <cstdio>
FILE *f=freopen("combinari.in","r",stdin);
FILE *g=freopen("combinari.out","w",stdout);

int v[19], numar;

void comb( int n, int k, int pos, FILE *f ) {

  if ( pos > k )
    {
        int i,ok = 0;

           for ( i = 1; i <= k; i++ )
        printf("%d ", v[i] );
        printf("\n" );

    }
  else
    {
         for ( v[pos] = v[pos-1] + 1; v[pos] <= n - (k - pos); v[pos]++ )
          comb( n, k, pos + 1, g );
  }
}

int main()
{
    int n,k;
    scanf("%d%d",&n,&k);
    v[0] = 0;
    comb( n , k ,1,f);
   // printf("%d",numar);

    return 0;
}