开心的K：素数回文数的个数

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

            int n = scanner.nextInt();

            int m = 0;

            al:for(int i = 11;i<=n;i++){

                String s = String.valueOf(i);

                if(s.charAt(0)==s.charAt(s.length()-1)){

                    i = Integer.parseInt(s);

                    for(int j = 2;j<i;j++){

                        if(i%j==0)

                            continue al;

                    }

                    m++;

                }

            }

            System.out.print(m);

    }

}