#include"bits/stdc++.h"
//#include<boost/multi_array.hpp>
//#include<boost/optional.hpp>
//#include<boost/range/irange.hpp>
//#include<boost/range/algorithm.hpp>
//#include<boost/range/adaptors.hpp>
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<int, int>;
#define rep(i,n) for(int i=0; i<(n); i++)
#define rep2(i,x,n) for(int i=x; i<(n); i++)
#define all(n) begin(n),end(n)
struct cww{cww(){ios::sync_with_stdio(false);cin.tie(0);}}star;
const long long INF = numeric_limits<long long>::max();

void Main() {
	int n;
	cin >> n;
	vector<int> a(n), b(n);
	rep(i, n) {
		cin >> a[i];
	}

	rep(i, n) {
		cin >> b[i];
	}

	bool dif = false;
	int ans = 0;
	rep(i, n) {
		if (a[i] == b[i]) {
			if (dif == true) {
				ans++;
				dif = false;
			}
		} else {
			if (dif == false) {
				dif = true;
			}
		}
	}
	if (dif == true) {
		ans++;
	}
	cout << ans << endl;
}

int main() {
	std::cin.tie(nullptr);
	std::ios_base::sync_with_stdio(false);
	std::cout << std::fixed << std::setprecision(15);
	Main();
	return 0;
}