View Code of Problem 93

import java.util.Scanner;
 
public class Main {
 
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		int a = input.nextInt();
		int b = input.nextInt();
		for (int i = a; i <= b; i++) {
			int tmp = ys(i);
			if(tmp>=a && tmp<=b && tmp>i) {
				if(i == ys(tmp)) {
					System.out.println(i+" "+tmp);
				}
			}
		}
	}
	
	public static int ys(int x) {
		int num = 0;
		for (int i = 1; i <= x/2; i++) {
			if(x%i==0)
				num+=i;
		}
		return num;
	}
 
}