#include <bits/stdc++.h>
using namespace std;
long long s1[9999],big=-1,small=999999,a1=0;
int main(){
	string s;
	cin>>s;
	for(int o=0;o<s.size();o++){
			s1[s[o]]++;
	}
	for(int i=97;i<=123;i++){
		if(s1[i]>big){
			big=s1[i];
		}
		else {
			if(s1[i]<small&&s1[i]>0){
			small=s1[i];
	      	}
	    }
	}
	if(big-small!=0&&big-small!=1){
		for(int i=0;i<big-small;i++){
	     	for(int o=0;o<big-small;o++){
		        if(i*o==big-small){
		        	a1++;
		    	}
        	}
     	}
	}
	else{
		a1=1;
	}
	if(a1==0){
		cout<<"Lucky Word\n"<<big-small;
	}
	else{
		cout<<"No Answer\n"<<big-small;
	}
	return 0;
}