package main

import "fmt"

func main() {
	var n int
	fmt.Scan(&n)
	s := make([]string, n)
	t := make([]string, n)
	for i := range s {
		fmt.Scan(&s[i])
	}
	for i := range t {
		fmt.Scan(&t[i])
	}
	for i := range s {
		if s[i] != t[i] {
			fmt.Println(i + 1)
			fmt.Println(s[i])
			fmt.Println(t[i])
			return
		}
	}
}