import java.util.Scanner;

/*
 * To change this license header, choose License Headers in Project Properties.
 * 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());
            String[] rows = new String[rowCount];

            for (int i = 0; i < rowCount; i++) {
                rows[i] = scanner.nextLine();
            }

            String good = "";
            String wrong = "";
            int rowIndex = 0;
            int colIndex = 0;

            if (compare(rows[0], rows[1])) {
                for (int i = 2; i < rowCount; i++) {
                    if (!compare(rows[0], rows[i])) {
                        wrong = rows[i];
                        rowIndex = i + 1;
                    }
                }
                good = rows[0];
            } else if (compare(rows[0], rows[2])) {
                wrong = rows[1];
                good = rows[0];
                rowIndex = 2;
            } else {
                wrong = rows[0];
                good = rows[1];
                rowIndex = 1;
            }

            String wrongChar = "";
            for (int i = 0; i < good.length(); i++) {
                if (!wrong.contains("" + good.charAt(i))) {
                    wrongChar = good.charAt(i) + "";
                    
                }
            }

            String goodChar = "";
            for (int i = 0; i < wrong.length(); i++) {
                if (!good.contains("" + wrong.charAt(i))) {
                    goodChar = wrong.charAt(i) + "";
                    colIndex = i + 1;
                }
            }
            
            System.out.println(rowIndex + " " + colIndex + " " + wrongChar);
        }
    }

    public static boolean compare(String a, String b) {

        for (int i = 0; i < a.length(); i++) {
            if (!b.contains("" + a.charAt(i))) {
                return false;
            }
        }

        return true;
    }

    public static String wrong(String a, String b) {

        for (int i = 0; i < a.length(); i++) {
            if (!b.contains("" + a.charAt(i))) {
                return "" + a.charAt(i);
            }
        }

        return "";
    }
}