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#include<iostream>
#include<cstring>
using namespace std;
int bk[30]={0};
int main()
{
    string s;
    cin>>s;
    for(int i=0;i<s.size();i++){
    	bk[s[i]-97]++;
	}
	int ma=INT_MIN,mi=INT_MAX;
	for(int i=0;i<25;i++){
		if(bk[i]>ma) ma=bk[i];
		if(bk[i]<mi&&bk[i]!=0) mi=bk[i];
	}
	int c=ma-mi;
	for(int i=2;i<c;i++){
		if(c%i==0){
			cout<<"No Answer\n0";
			return 0;
		}
	}
	cout<<"Lucky Word\n"<<c;
    return 0;
}

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