#include<iostream>
#include<math.h>
#include<string.h>
#include<vector>
#include<algorithm>
#include<iomanip>
#include<deque>
using namespace std;

int main(){
	int n;
	cin >> n;
	vector<string> s,t;
	for(int i=0;i<n;i++){
		string temp;
		cin >> temp;
		s.push_back(temp);
	}
	for(int i=0;i<n;i++){
		string temp;
		cin >> temp;
		if(temp==s[i])continue;
		cout << i+1 << endl;
		cout << s[i] << endl;
		cout << temp << endl;
	}
	
	return 0;
}