/* 
 * File:   tribune.cpp
 * Author: cteam037
 *
 * Created on October 22, 2016, 9:44 AM
 */

#include <cstdlib>
#include <iostream>
#include <string>
#include <cstring>

using namespace std;

/*
 * 
 */
int main(int argc, char** argv) {
    ios::sync_with_stdio(false);
    int size, differentLine = 0, differentCollumn = 0;
    int linesSum[26];
    int collumnsSum[26];
    bool colFound = false, rowFound = false;
    string lines[26];
    while (cin >> size) {
        memset(linesSum, 0, 26 * sizeof(*linesSum));
        memset(collumnsSum, 0, 26 * sizeof(*collumnsSum));
        rowFound = colFound = false;
        for (int i = 0; i < size; ++i) {
            cin >> lines[i];
            for (unsigned int j = 0; j < lines[i].length(); ++j) {
                collumnsSum[j] += lines[i].at(j);
                linesSum[i] += lines[i].at(j);
            }
        }
        for (int j = 0; j < size - 2 && (!rowFound || !colFound); ++j) {
            if (linesSum[j] != linesSum[j + 1]) {
                if (linesSum[j + 1] == linesSum[j + 2]) {
                    differentLine = j;
                    rowFound = true;
                } else {
                    differentLine = j + 1;
                    rowFound = true;
                }
            } else if (linesSum[j] != linesSum[j + 2]) {
                differentLine = j + 2;
                rowFound = true;
            }
            if (collumnsSum[j] != collumnsSum[j + 1]) {
                if (collumnsSum[j + 1] == collumnsSum[j + 2]) {
                    differentCollumn = j;
                    colFound = true;
                } else {
                    differentCollumn = j + 1;
                    colFound = true;
                }
            } else if (collumnsSum[j] != collumnsSum[j + 2]) {
                differentCollumn = j + 2;
                colFound = true;
            }
        }
        char c = lines[differentLine].at(differentCollumn) - (linesSum[differentLine] - linesSum[differentLine == 0 ? 1 : differentLine - 1]);
        cout << (differentLine + 1) << ' ' << (differentCollumn + 1) << ' ' << c << endl;
    }

    return 0;
}