#include<stdio.h>
#include<string.h>
int main(){
int fi[100],i,k,n;
fi[0]=0;
fi[1]=1;
for(i=2;i<100;i++)
	fi[i]=fi[i-1]+fi[i-2];
while(scanf("%d",&n)!=EOF){
	k=0;
	for(i=1;i<100;i++)
		if(n==fi[i])
			k=1;
	if(k==1)
		printf("Lucky Day\n");
	if(k==0)
		printf("Bad Day\n");
}
}