#include <iostream>
#include <stdint.h>
#include <vector>
#include <unordered_set>

using namespace std;

int main() {
    while (cin.good() && !cin.eof()) {
    uint32_t lines;
    cin >> lines;
    if (cin.eof())
	return 0;
    
    std::vector<char> fans;
    fans.resize(lines*lines);
    for (uint32_t i = 0; i < lines*lines; ++i) {
	char c;
	cin >> c;
	fans[i] = c;
    }
    std::unordered_set<char> row;

    for (uint32_t y = 0; y < lines; ++y) {
	row.insert(fans[y*lines]);
    }
    
    for (uint32_t x = 1; x < lines; ++x) {
	for (uint32_t y = 0; y < lines; ++y) {
	    if (row.find(fans[y*lines+x]) == row.end()) {
		//std::cout << "Expectation failed for " << fans[y*lines+x] << "!" << endl;
		
		for (uint32_t y = 0; y < lines; ++y) {
		    row.erase(fans[y*lines+x]);
		}
		
		//cout << row.size() << ' ' << *row.begin() << endl;
		
		uint32_t gotX = x;
		uint32_t gotY = y;
		char expected = *row.begin();
		char got = fans[y*lines+x];
		
		//cout << "Expected " << expected << " got " << got << endl;
		if (x == 1) {
		    //cout << "First" << endl;
		    row.clear();
		    for (uint32_t yThird = 0; yThird < lines; ++yThird) {
			row.insert(fans[yThird*lines+2]);
		    }
		    if (row.find(expected) == row.end()) {
			//cout << "Didn't find expected in line 2" << endl;
			for (uint32_t yFirst = 0; yFirst < lines; ++yFirst) {
			    //cout << yFirst << " got :" << fans[yFirst*lines] << endl;
			    
			    if (fans[yFirst*lines] == expected) {
			    //cout << "got y " << endl;
				gotY = yFirst;
			    }
			}
			expected = got;
			gotX = 0;
			
		    }
		    
		}
		
		cout << gotY+1 << ' ' << gotX+1 << ' ' << expected << endl;
		
		goto label;
	    }
	}
    }
    
    label:;

    
    }
    
    return 0;
}