#include<stdio.h>

int main(){
	int f[50];
	int i,n;
	f[0] = 1,f[1] = 2;
	for(i = 2;i < 50;i++){
		f[i] = f[i-1] + f[i-2];
	}
	while(scanf("%d",&n) != EOF){
		for(i = 0;i < 50;i++){
			if(n == f[i]){
				break;
			}
		}
		if(i < 50){
			printf("Lucky Day\n");
		}
		else{
			printf("Bad Day\n");
		}
	}
	return 0;
}