#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
char s[130];
int a[30],maxn=0,minn=100;
int main(){
	freopen("word.in","r",stdin);
	freopen("word.out","w",stdout);
	cin>>s;
	for(int i=0;i<strlen(s);i++){
		a[s[i]-'a']++;
	}
	for(int i=0;i<26;i++){
		maxn=max(maxn,a[i]);
		if(a[i])
		minn=min(minn,a[i]);
	}
	int ans=maxn-minn;
	if(ans==0||ans==1)
	cout<<"No Answer"<<endl<<0;
	else{
	for(int i=2;i*i<=ans;i++)
	if(ans%i==0){
		cout<<cout<<"No Answer"<<endl<<0;
	return 0;
    }
    cout<<"Lucky Word"<<endl<<ans;
    return 0;
    }
}