#include <iostream>
#include <set>
#include <cstring>
#include <string>
#include <vector>
#include <sstream>
using namespace std;

int main(int argc, char** argv) {

    size_t cnt;
    
    while(cin >> cnt)
    {
        string str;
        vector<string> vecStr;
        vector<string> vecSetStr;
        for(size_t i = 0; i <= cnt; i ++)
        {
            set<char> setStr;
            getline(cin,str);
            if(str.size() <= 1) continue;
            
            for(string::iterator it = str.begin(); it != str.end(); it ++)
                setStr.insert((*it));
            
            vecStr.push_back(str);
            stringstream ss;
            for(auto & i : setStr)
            {
                ss << i;
            }
            vecSetStr.push_back(ss.str());
        }
        for(size_t i = 0; i < vecSetStr.size(); i ++)    
        {
            size_t cntShoda = 1;
            for(size_t j = i+1; j < vecSetStr.size(); j++)
                if(vecSetStr[i].compare(vecSetStr[j]) == 0) cntShoda ++;
            
          
            if(cntShoda == 1 && i+1 != vecSetStr.size()) // i == spatnej
            {
                //cout << "SPATNEJ JE: " << vecSetStr[i] << endl;
                char wrongChar = 0;
                int rightIdx = 0;
               
                for(size_t l = 0; l < vecSetStr[i].size();l++) // size obecnej
                {
                    bool found = false;
                    wrongChar = vecSetStr[i][l];
                    if(i+1 >= vecSetStr.size()) 
                    {
                        rightIdx = i-1;
                        for(size_t m = 0; m < vecSetStr[i].size();m++)
                        {
                            //cout << "1. Prochazime: vecSetStr[i] - " << vecSetStr[i][l] << endl;
                            if(vecSetStr[i][l] == vecSetStr[i-1][m]) 
                            {
                                found = true;
                                break;
                            }
                        }
                        if(!found) break;
                            //cout << "WRONG CHAR " << wrongChar << endl;
                        
                    }
                    else
                    {
                        rightIdx = i+1;
                        for(size_t m = 0; m < vecSetStr[i].size();m++)
                        {
                            //cout << "2. Prochazime: vecSetStr[i] - " << vecSetStr[i][l] << endl;
                            if(vecSetStr[i][l] == vecSetStr[i+1][m]) 
                            {
                                found = true;
                                break;
                            }
                        }
                        if(!found) break;
                            //cout << "WRONG CHAR " << wrongChar << endl;
                    }
                }
                
                for(size_t p = 0; p < vecStr.size(); p ++)
                {
                    set<char>rightMnozina;
                    set<char>leftMnozina;
                    for(size_t q = 0; q < vecSetStr[rightIdx].size(); q ++)
                        rightMnozina.insert(vecSetStr[rightIdx][q]);
                    
                    for(size_t j = 0; j < vecSetStr[i].size(); j ++)
                    {
                        if(wrongChar == vecSetStr[i][j]) leftMnozina.insert('Z'+1);
                        else leftMnozina.insert(vecSetStr[i][j]);
                    }
                    char blabla = 0;
                    set<char>::iterator it = rightMnozina.begin();
                    set<char>::iterator it2 = leftMnozina.begin();
                    
                    
                    for(; it != rightMnozina.end(); ++it,++it2)
                    {
                        //cout << *it << " a " << *it2 << endl;
                        if(*it != *it2) 
                        {
                            //cout << *it << endl;
                            blabla = *it;
                            break;
                        }
       
                    }
                    
                    bool isSuccess = false;
                    for(size_t o = 0; o < vecStr[p].size(); o++)
                    {
                        if(wrongChar == vecStr[p][o]) // spatnej znak
                        {
                            cout << i+1 << " " << o+1 << " " << blabla << endl;
                            isSuccess = true;
                        }
                    }
                    if(isSuccess) break;
                }
                
            }   
        }
        
    }
    return 0;
}