#include<iostream>
using namespace std;
int main()
{
    int n,fib[45];
    int i,flag;
    fib[0]=2;
    fib[1]=3;
    for(i=2; i<45; i++)
        fib[i]=fib[i-1]+fib[i-2];
    while(scanf("%d",&n) != EOF)
    {
        flag=0;
        for(i=0; i<45; i++)
            if(fib[i]==n)
            {
                cout<<"Lucky Day\n";
                flag=1;
                break;
            }
        if(flag==0)
            cout<<"Bad Day\n";
    }
    return 0;
}