#include <stdio.h>

int main() {
  FILE *fin = fopen( "combinari.in", "r" );
  FILE *fout = fopen( "combinari.out", "w" );

  int n, k;
  fscanf( fin, "%d%d", &n, &k );
  for( int mask = (1 << n); mask--; ){
    if( __builtin_popcount( mask ) != k ) continue;
    for( int i = 0; i < n; i++ )
      if( mask & (1 << i) )
        fprintf( fout, "%d ", 1 + i );
    fputc( '\n', fout );
  }

  fclose( fin );
  fclose( fout );
  return 0;
}