#include<bits/stdc++.h>
using namespace std;
char t;
int a[27],mx=0,mn=101;
int main(){
	while(cin>>t)a[t-97]++;
	for(int i=0;i<26;i++){
		if(a[i]>0){
			if(a[i]>mx)mx=a[i];
			if(a[i]<mn)mn=a[i];
		}
	}
	int k=mx-mn;
	if(k==1||k==0)
		cout<<"No Answer"<<endl<<0;
	else if(k==2)cout<<"No Answer"<<endl<<0;
	else{
		for(int i=2;i<k;i++){
			if(k%i==0){
				cout<<"No Answer"<<endl<<0;
				return 0;
			}
		}
		cout<<"Lucky Word"<<endl<<k;
	}
	return 0;
}