// Mihai Priboi

#include <bits/stdc++.h>

#define MAXN 18

FILE *fin, *fout;

int v[MAXN];
int n, k;

void bkt( int i ) {
  int j;
  if( i == k ) {
    for( j = 0; j < k; j++ )
      fprintf( fout, "%d ", v[j] );
    fprintf( fout, "\n" );
  }
  else {
    for( j = v[i - 1] + 1; j <= n; j++ ) {
      v[i] = j;
      bkt( i + 1 );
    }
  }
}

int main() {
  fin = fopen( "combinari.in", "r" );
  fscanf( fin, "%d%d", &n, &k );
  fclose( fin );
  fout = fopen( "combinari.out", "w" );
  bkt(0);
  fclose( fout );
  return 0;
}