题解 | #[NOIP2008]笨小猴#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
        int maxn = 0;
        int minn = str.length();

        for (int i = 0; i < str.length(); i++) {
            int temp1 = 0;
            for (int j = 0; j < str.length(); j++) {
                if (str.charAt(i) == str.charAt(j)) {
                    temp1++;
                }
            }
            if (maxn < temp1) {
                maxn = temp1;
            }
            if (minn > temp1) {
                minn = temp1;
            }
        }

        // System.out.println(maxn + " " + minn);
        int z = maxn - minn;
        if (z <= 1) {
            System.out.print("No Answer\n" + 0);
        } else {
            boolean loop = true;
            for (int i = 2; i < z; i++) {
                if (z % i == 0) {
                    loop = false;
                }
            }
            if (loop) {
                System.out.println("Lucky Word\n" + z);
            }
        }
    }
}