package com.company;

import java.util.Scanner;

public class RadixPrinter {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter number: ");
        int number = scanner.nextInt();
        System.out.print("Enter radix: ");
        int radix = scanner.nextInt();

        printInRadix(radix, number);

    }


    static void printInRadix(int radix, int n) {
        if (n<0)
            throw new IllegalArgumentException();

        if (radix == 2)
            System.out.println(Integer.toBinaryString(n));
        else if (radix == 8)
            System.out.println(Integer.toOctalString(n));
        else if (radix == 10)
            System.out.println(n);
        else
            throw new IllegalArgumentException();

    }
}