import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author mahansky
 */
public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        while (scanner.hasNextLine()) {
            int rowCount = Integer.parseInt(scanner.nextLine());
            ArrayList<String> rows = new ArrayList<String>();
            ArrayList<String> orig = new ArrayList<String>();

            for (int i = 0; i < rowCount; i++) {
                ArrayList<String> row = new ArrayList<String>();
                String in  = scanner.nextLine();
                orig.add(in);
                String[] chars = in.split("");
                for (int j = 0; j < chars.length; j++) {
                    row.add(chars[j]);
                }

                row.sort(new Comparator<String>() {
                    @Override
                    public int compare(String o1, String o2) {
                        return o1.compareTo(o2);
                    }

                });

                String rrr = "";
                for (int j = 0; j < row.size(); j++) {
                    rrr += row.get(j);
                }

                rows.add(rrr);
            }
            
            String good = "";
            int rowIndex = 0;
            int colIndex = 0;

            if (rows.get(0).equals(rows.get(1))) {
                for (int i =2; i < rows.size(); i++) {
                    if (!rows.get(i).equals(rows.get(0))) {
                        rowIndex = i + 1;
                        good = rows.get(0);
                        break;
                    }
                }
            } else if (rows.get(0).equals(rows.get(2))) {
                rowIndex = 2;
                good = rows.get(0);
            } else {
                rowIndex = 1;
                good = rows.get(1);
            }

            String pismeno = "";
            for (int i =0; i < good.length(); i++) {
                if(!rows.get(rowIndex - 1).contains(good.charAt(i) + "")){
                    pismeno = good.charAt(i) + "";
                    break;
                }
            }
            
            
             for (int i =0; i < good.length(); i++) {
                if(!good.contains(orig.get(rowIndex - 1).charAt(i) +"")){
                    colIndex = i + 1;
                    break;
                } else {
                    good = good.replace("" + orig.get(rowIndex - 1).charAt(i), "");
                }
            }
            
            System.out.println(rowIndex + " " + colIndex + " " + pismeno);
        }
    }

}