#include<stdio.h>
int f[105];
int main(){
	int n,flag,i;
	f[1]=1;f[2]=2;
	for(i=3;i<=100;i++){
	f[i]=f[i-1]+f[i-2];
	}
	while(scanf("%d",&n)!=EOF){
	flag=0;
	for(i=1;i<=100;i++){
		if(n==f[i]){
		flag=1;
		break;
		}
	}
	if(flag)
		printf("Lucky Day\n");
	else{
	printf("Bad Day\n");
	}
	}
return 0;
}