#include <bits/stdc++.h>
using namespace std;
int main()
{
    string s;
    char f;
    int l, max[26] = {0}, maxx = 0, minn = 101, t, flag = 1;
    cin >> s;
    l = s.size();
    for (int i = 0; i < l; i++)
    {
        f = s[i];
        for (int j = 0; j < l; j++)
        {
            if (s[j] == f)
                max[i]++;
        }
    }
    for (int i = 0; i < 26; i++)
    {
        if (max[i] > maxx)
            maxx = max[i];
        if (minn > max[i] && max[i] > 0)
            minn = max[i];
    }
    t = maxx - minn;
    for (int i = 2; i < t; i++)
    {
        if (t % i == 0)
        {
            flag = 0;
            break;
        }
    }
    if (t == 0 || t == 1)
        cout << "No Answer" << endl
             << 0;
    else
    {
        if (flag == 1)
        {
            cout << "Lucky Word" << endl
                 << t;
        }
        else if (flag == 0)
            cout << "No Answer" << endl
                 << 0;
    }
}