#include<bits/stdc++.h>
#include<algorithm>
#include<cmath>
using namespace std;
int main(){
	string s;
	cin>>s;
	int maxn=1,minn=100,sum=1;
	for(int i=0;i<s.size();i++){
		for(int j=i+1;j<s.size();j++){
			if(s[i]==s[j]){
				sum++;
			}
			maxn=max(maxn,sum);
			minn=min(minn,sum);
		}
		sum=1;
	}
    sum=maxn-minn;
	int a=0;
	while(sum>2){
		for(int i=1;i<=sum;i++){
			if(sum%i==0) a++;		
		}
	}
	if(a==2) cout<<"Lucky Word"<<endl<<maxn-minn;
	if(sum==0||sum==1) cout<<"No Answer"<<endl<<"0";
	else cout<<"No Answer"<<endl<<"0";
	return 0;
	
}