write a function which return word fun if argument is from 1 to 10, word novice if argument is from 11 to 20, in other cases word must be buff

use std::io;

fn main() {
  let mut input = String::new();
  io::stdin().read_line(&mut input).expect("Error read line");
  let number = input.trim().parse::<i32>().expect("Error parse");
  if number >= 1 && number <= 10 {
    println!("fun");
  } else if number >= 11 && number <= 20 {
    println!("novice");
  } else {
    println!("buff");
  }
}