#include<iostream>
#include<algorithm>
#include<cstdio>
using namespace std;
int main()
{
	freopen("word","r",stdin);
	freopen("word.out","w",stdout);
	string s;
	int a[27]={0},tot,n,m,t;
	cin>>s;
	n=s.size();
	for(int i=0;i<n;++i)
	{
		m=s.at(i)-'a';
		a[m]++;
	}
	sort(a,a+26);
    for(int i=0;i<26;++i)
        if(a[i])
            {
            	t=i;
            	break;
            }
    tot=a[25]-a[t];
    if((tot==0)||(tot==1))
    {
    	cout<<"No Answer"<<endl;
    	cout<<"0";
    	return 0;
    }
    else
    {
    	for(int i=2;i<tot;++i)
    	    if(tot%i==0)
    	    {
    	    	cout<<"No Answer"<<endl;
    	    	cout<<"0";
    	    	return 0;
    	    }
    }
    cout<<"Lucky Word"<<endl;
    cout<<tot;
	return 0;
}