#!/usr/bin/env python

import sys, re

def main(args):
	line = sys.stdin.readline()
	ret = ""
	while(line != '\n' or line != ''):
		try:
			line = int(line)
		except ValueError:
			print(ret)
			return 0
		matrix = []
		string = ""
		for i in range(0, line):
			matrix.append(sys.stdin.readline())
			string = string + matrix[i]
		string = re.sub(r'\s', "", string)
		counts = {}
		while string != "":
			pat = string[0]
			counts[pat] = len(re.findall(pat, string))
			string = re.sub(pat, "", string)
		repl = ""
		bad = ""
		row = 0
		col = 0
		for char in counts:
			if counts[char] == line - 1:
				repl = char
			if counts[char] == 1:
				bad = char
		for i in range(0, line):
			temp = re.search(bad, matrix[i])
			if (temp != None and temp != "None"):
				row = i+1
				col = temp.start()+1
		ret = ret + str(row) + " " + str(col) + " " + repl + "\n"
		line = sys.stdin.readline()
	return 0

if __name__ == '__main__':
    import sys
    sys.exit(main(sys.argv))