Java 進制轉換 輸出17進制

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        while(input.hasNextInt()){
            int num = input.nextInt();
            String str4 = Integer.toString(num,17);
            System.out.println(str4 );
            }
        input.close();
    }
}