#include<stdio.h>

int isfib(int n){
	int n1, n2, s = 0, i;
	if(n == 1 || n == 2) return 1;
	n1 = 1; n2 = 2;
	for(i = 3; s < n; i++){
		s = n1 + n2;
		n1 = n2;
		n2 = s;
	}
	if(s == n) return 1;
	else return 0;
}

int main(){
	int n;
	while(scanf("%d", &n) != EOF){
		if(isfib(n)){
			printf("Lucky Day\n");
		}else{
			printf("Bad Day\n");
		}
	}
	
}