#include<iostream>
using namespace std;
int main(){
	int n,i,a[10000];
	for(i=1;i<=25;i++){
		if(i==1||i==2){
			a[i] = 1;
		}
		else {
			a[i] = a[i-1]+a[i-2];
		}
	}
	while(scanf("%d",&n)!=EOF){
		for(i=1;i<=25;i++){
			if(n==a[i]){
				printf("Lucky Day\n");
				break;
			}
		}
		if(i==26){
			printf("Bad Day\n");
		}
	}
}