#include<bits/stdc++.h>
using namespace std;
string s;
int a[26];
int main() {
	int b = 0;
	int c = 101;
	cin >> s;
	for (int i = 0; i < s.size(); i++) {
			a[s[i] - 'a']++;
	}for (int i1 = 0; i1 < 26; i1++) {
		if (a[i1] > b) b = a[i1];
	}for (int k = 0; k < 26; k++) {
		if (a[k] < c&&a[k]!=0) c = a[k];
	}
	int m = b - c;
	for (int y = 2; y < m||m==0; y++) {
		if (m % y == 0||m==0) {
			printf("No Answer\n0");
			m = 101;
			break;
		}
	}if (m != 101) {
		printf("Lucky Word\n");
		cout << m;
	}
	return 0;
}