#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;
}