#include <bits/stdc++.h>
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define FSP(x) fixed << setprecision(x)
using namespace std;
using ll = long long;
constexpr ll INF = LLONG_MAX;
//constexpr ll P = 1e9 + 7;
//constexpr ll P = 998244353;
constexpr long double PI = acosl(-1);
void Yes() {cout << "Yes\n";}
void No() {cout << "No\n";}
void YES() {cout << "YES\n";}
void NO() {cout << "NO\n";}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	ll n;
	cin >> n;
	vector<ll> a(n), b(n);
	for (ll i = 0; i < n; i++) cin >> a[i];
	for (ll i = 0; i < n; i++) cin >> b[i];

	vector<bool> diff(n);
	for (ll i = 0; i < n; i++) diff[i] = (a[i] != b[i]);
	ll cnt = 0;
	for (ll i = 0; i < n; i++) {
		if (diff[i]) {
			if (cnt == 0) cnt++;
			else if (!diff[i - 1]) cnt++;
			else if (diff[i - 1] && (a[i - 1] ^ b[i - 1]) ^ (a[i] ^ b[i])) cnt++;
		}
	}
	cout << cnt << endl;
}