#include<bits/stdc++.h>
using namespace std;
#define lo long long
#define sr string
#define ch char
#define ve vector
#define al(x) x.begin(),x.end()
#define rep(i,a) for(int i=0;i<a;i++)
#define rrep(i,a,b) for(int i=a;i<b;i++)
#define rrrep(i,a,b) for(int i=a;i>=b;i--)
#define wh while

int main(){
    lo N;
    cin>>N;
    ve<sr> S(N);
    ve<sr> T(N);
    rep(i,N){
        cin>>S[i];
    }
    rep(i,N){
        cin>>T[i];
    }
    rep(i,N){
        if(S[i]!=T[i]){
            cout<<i+1<<endl<<S[i]<<endl<<T[i]<<endl;
            break;
        }
    }
}