#include<bits/stdc++.h>
using namespace std;
const int N=1000000;
string a;
int main(){
	int l=0,i,la,m=1,n=10000000;
	cin >> a;
	la = a.size();
	for(int j = 0;j <= la; ++j){
		for (i = 1;i <= j; i ++ ){
			if(a[j] == a[i]){
				m++;	
				if(m >= l)l = m;
				if(m < n)n = m;
			}
			else m = 1;
		}
	}
	int k=l-n;
	bool p=0;
	for (i = 2;i <= sqrt(k); ++ i){
		if(k%i != 0){
			p = 1;	
		}
		else p = 0;
	}
	if (p == 1){
		cout << "Lucky Word" << endl << l - n ;
	}
	else cout << "No Answer" << endl << 0 ;
return 0;
} 

知道有错，可是不会排错