#include<bits/stdc++.h>
using namespace std;
bool isp(int n){
	if(n<=1)return 0;
	for(int i=2;i<n;i++)
		if(n%i==0)
			return 0;
	return 1;
}
int main(){
	int maxn=0,minn=100;
	map<char,int> m;
	string s;
	cin>>s;
	for(int i=0;i<s.size();i++){
		m[s[i]]++;
		maxn=max(maxn,m[s[i]]);
		minn=min(minn,m[s[i]]);
	}
	if(isp(maxn-minn))cout<<"Lucky Word\n"<<maxn-minn;
	else cout<<"No Answer\n0";
	return 0;
}

#2、9错了

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