View Code of Problem 92

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int m = scanner.nextInt();
        int n = scanner.nextInt();
        int count = 0;
        for (int i = m; i <= n; i++) {
            if (util(i)){
                System.out.printf("%6d",i);
                if (++count % 5 == 0) System.out.println();
            }
        }
    }

    public static boolean util(int a){
        for (int i = 2; i <= Math.sqrt(a); i++) {
            if (a % i == 0){
                return false;
            }
        }
        String temp = a+"";
        int i = 0, j = temp.length()-1;
        while (i < j){
            if (temp.charAt(i) != temp.charAt(j))return false;
            i++;
            j--;
        }
        return true;
    }
}