#include <stdio.h>
#include <stdbool.h>

void main(void){
	int n = 0;
	scanf("%d",&n);
	char game[1000] = "a";
	scanf("%s",game);
	char machine[1000] = "b";
	scanf("%s",machine);
	bool playableFlg = false;
	for(int i = 0 ; i < n ; i++ ){
		if(game[i] == machine[i] && machine[i] == 'o'){
			playableFlg = true;
		}
	}
	if(playableFlg){
		printf("Lucky Turtleman");
	}else{
		printf("Unlucky Turtleman");
	}
}