#include <iostream>
#include <vector>
using namespace std;
int main(){
    int n;cin>>n;
    vector<int> A(n),B(n);
    for(int i = 0; n> i; i++){
        cin>>A[i];
    }
    for(int i = 0; n > i; i++){
        cin>>B[i];
    }
    bool dif = A[0]==B[0];
    int ans = 0;
    for(int i = 0; n > i; i++){
       if(dif != (A[i] == B[i])){
           if(dif == 0){
               ans++;
           }
           dif = (A[i] == B[i]);
       }
    }
    if(dif == 0)ans++;
    cout << ans << endl;
}