import java.util.*;

public final class tribune {
public final static void main(String args[]) {
    try {
    Scanner s = new Scanner(System.in);
    while (true) {

    //System.out.println("READ2");
    int lines = s.nextInt();
    
    List<Character> fans = new ArrayList<>();
    for (int i = 0; i < lines; ++i) {
	while (!s.hasNext("[a-zA-Z]*"))
	    s.next();
	String str = s.next("[a-zA-Z]*");
	//System.out.println(str);
	
	for (Character c : str.toCharArray())
	fans.add(c);
    }
    //System.out.println(fans.toString());
    Set<Character> row = new HashSet<>();
    
    for (int y = 0; y < lines; ++y) {
	char c = fans.get(y*lines+0);
	row.add(c);
	//System.out.println(c);
    }
    //System.out.println(row.toString());
    
    boolean found = false;
    
    //System.out.println("READ");
    
    for (int x = 1; x < lines; ++x) {
	for (int y = 0; y < lines; ++y) {
	    if (!row.contains(fans.get(y*lines+x))) {
		//System.out.println("Expectation failed for " + fans.get(y*lines+x) + "!");
		
		
		//System.out.println(row.toString());
		for (int y2 = 0; y2 < lines; ++y2) {
		    char c2 = fans.get(y2*lines+x);
		    row.remove(c2);
		/*    if (row.remove(c2))
			System.out.println("Removed "+c2);
		    else
			System.out.println("Not removed "+c2);*/
		}
		
		//System.out.println (row.size());
		
		int gotX = x;
		int gotY = y;
		char expected = row.iterator().next();
		char got = fans.get(y*lines+x);
		
		//System.out.println("Expected " + expected + " got " + got );
		if (x == 1) {
		    //cout << "First" << endl;
		    row.clear();
		    for (int yThird = 0; yThird < lines; ++yThird) {
			row.add(fans.get(yThird*lines+2));
		    }
		    if (!row.contains(expected)) {
			//System.out.println("Didn't find expected in line 2");
			for (int yFirst = 0; yFirst < lines; ++yFirst) {
			    //System.out.println( yFirst + " got :" + fans.get(yFirst*lines));
			    
			    if (fans.get(yFirst*lines) == expected) {
			    //System.out.println ("got y ");
				gotY = yFirst;
			    }
			}
			expected = got;
			gotX = 0;
			
		    }
		    
		}
		
		System.out.println((gotY+1) + " " + (gotX+1) + ' ' + expected );
		
		found = true;
		break;
	    }
	}
	    if (found)
		break;
	}
	}
} catch (NoSuchElementException e) {
    //e.printStackTrace();
    return;
} catch (Exception e) {
    //e.printStackTrace();
    return;
}
    
    }
}