int main(){
  int number, guess;

  srand( time( 0 ) );
  number = lower_limit + rand() % (upper_limit - lower_limit + 1);

  printf( , lower_limit, upper_limit );

  while( scanf( , &guess ) == 1 ){
    if( number == guess ){
      printf(  );
      break;
    }
    printf( , number < guess ?  :  );
  }

  return 0;
}