#include<stdio.h>
int main(){
	int a[501];
	int i;
	int s,c;
	a[1]=1;
	a[2]=1;
	for(i=3;i<=500;i++){
		a[i]=a[i-1]+a[i-2];
	}
	while(~scanf("%d",&s)){
		c=0;
		for(i=1;i<=500;i++){
			if(s==a[i]){
				c=1;
			}
		}
		if(c==1) printf("Lucky Day\n");
		else printf("Bad Day\n");
	}
}