#include<iostream>
#include<algorithm>
using namespace std;
int co[1000];
int main() {
	string s;
	int flag=1;
	cin >> s;
	for (int i = 0; i < s.size(); i++) {
		for (int j = i + 1; j < s.size(); j++) {
			if (s[i] == s[j])co[i]++;
		}
	}
	sort(co, co + s.size());
	int num = co[s.size() - 1] - co[0];
	for (int i = 2; i < num; i++) {
		if (num % i == 0) {
			flag = 0;
			break;
		}
	}
	if (flag == 1&& num != 1)cout << "Lucky Word" << endl << num;
	else cout << "No Answer" << endl << 0;
	return 0;
}

测试点2和9过不去 大佬拉下我吧?