#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;
}