#include <iostream>
#include <vector>

using namespace std;

typedef struct person {
	uint32_t row;
	uint32_t column;
	char letter;
} Person;

int main(int argc, char ** argv)
{
	int n;
	while(cin >> n)
	{
		int pole[26]{0};
		vector<Person> persons;
		for (int i = 0; i < n; ++i)
		{
			for (int j = 0; j < n; ++j)
			{
				Person temp = Person();

				cin >> temp.letter;
				temp.row = i;
				temp.column = j;

				pole[((int)temp.letter) - 65]++;
				
				persons.push_back(temp);
			}
		}

		int index = 0, index2 = 0;
		for (int i = 0; i < 26;++i)
		{
			if (pole[i] == n - 1) 
			{
				index = i;
			}
			if (pole[i] == 1)
			{
				index2 = i;
			}
		}

		for (const auto & person : persons)
		{
			if (((int)person.letter) - 65 == index2)
			{
				cout << (person.row + 1) << " " << (person.column + 1) << " " << (char)(index + 65) << endl;
				break;
			}
		}
	}

	return 0;
}