#include <iostream>
#include <cstdint>

using namespace std;

int main()
{
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	
	uint32_t N, i;
	cin >> N;

	static char A[101], B[101];
	cin >> A >> B;

	for (i = 0; ; ++i)
		switch (A[i])
		{
		case 'o':
			if (B[i] == 'o')
			{
				cout << "Lucky Turtleman\n";
				return 0;
			}
			break;

		case '\0':
			cout << "Unlucky Turtleman\n";
			return 0;
		}

	return -1;
}