#include <bits/stdc++.h> using namespace std; #define rep(i,a,b) for(LL i = a;i<b; i++) #define rrep(i,a,b) for(LL i = a;i>b; i--) #define INF ((1LL<<62)-(1LL<<31)) #define ooki 9,223,372,036,854,775,807 #define tii -9,223,372,036,854,775,808 typedef long long LL; int main(){ int n; cin >> n; vector<string> s(n);rep(i,0,n){cin>>s[i];} vector<string> t(n);rep(i,0,n){cin>>t[i];} rep(i,0,n){ if(s[i]!=t[i]){ cout<<i+1<<endl<<s[i]<<endl<<t[i]<<endl; return 0; } } }