#include<bits/stdc++.h>
using namespace std;
string q,w;
int a[27],b[27],n,m,c;
int main(){
	cin>>q;
	for(int i=0;i<q.length();++i){
		if(q[i]=='a') a[1]++;
		if(q[i]=='b') a[2]++;
		if(q[i]=='c') a[3]++;
		if(q[i]=='d') a[4]++;
		if(q[i]=='e') a[5]++;
		if(q[i]=='f') a[6]++;
		if(q[i]=='g') a[7]++;
		if(q[i]=='h') a[8]++;
		if(q[i]=='i') a[9]++;
		if(q[i]=='g') a[10]++;
		if(q[i]=='k') a[11]++;
		if(q[i]=='l') a[12]++;
		if(q[i]=='m') a[13]++;
		if(q[i]=='n') a[14]++;
		if(q[i]=='o') a[15]++;
		if(q[i]=='p') a[16]++;
		if(q[i]=='q') a[17]++;
		if(q[i]=='r') a[18]++;
		if(q[i]=='s') a[19]++;
		if(q[i]=='t') a[20]++;
		if(q[i]=='u') a[21]++;
		if(q[i]=='v') a[22]++;
		if(q[i]=='w') a[23]++;
		if(q[i]=='x') a[24]++;
		if(q[i]=='y') a[25]++;
		if(q[i]=='z') a[26]++;
	}
	for(int i=1;i<=26;i++){
		if(a[i]>=a[i-1]) n=a[i];
		if(a[i-1]<=a[i]) m=a[i];
	}
	c=n-m;
	if(c!=0 || c!=1 && c==2 || c==3 || c==5 || c%2!=0 && c%3!=0 && c%5!=0){
		cout<<"Lucky Word"<<endl;
		printf("%d",c);
	}else{
		cout<<"No Answer"<<endl;
		cout<<"0";
	}
	return 0;
}