#include<stdio.h>
int main()
{
	int n,a[66]={0},flag1;
	a[0]=1;
	a[1]=1;
	for(int i=2;i<65;i++)
	{
		a[i]=a[i-1]+a[i-2];
	}
	while(scanf("%d",&n)!=EOF){
		flag1=0;
	for(int i=0;i<65;i++)
	{
		if(n==a[i])flag1=1;
		else continue;
	}
	if(flag1==1)printf("Lucky Day\n");
	else printf("Bad Day\n");
	}
return 0;
}