#include<bits/stdc++.h>
using namespace std;
int a[27],len;
int mn=20000,mx=-20000;
string s;

int main(){
	cin >> s;
	len = s.size();
	for(int i=0; i<=len-1; i++){
		a[s[i] - 'a']++;
	}
	for(int i=0; i<=25; i++){
		if(a[i] < mn && a[i] > 0)  mn = a[i];
		if(a[i] > mx && a[i] > 0)  mx = a[i];
	}
	int c = mx - mn;
	if (c == 0 || c == 1){
		cout << "No Answer" << endl;
			cout << 0 << endl;
			return 0;
	}
	for(int i=2; i*i<=len; i++){
		if(c%i == 0 && c != 2){
			cout << "No Answer" << endl;
			cout << 0 << endl;
			return 0;
		}
	}
	cout << "Lucky Word" << endl;
	cout << c << endl;
	return 0;
}