#include <stdio.h>

FILE *fin, *fout;
int a[20], n, k;

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