#include <vector>
#include <iostream>
using namespace std;
int main() {
	int N;
	cin >> N;
	vector<int> A(N + 2), B(N + 2);
	for (int i = 1; i <= N; ++i) cin >> A[i];
	for (int i = 1; i <= N; ++i) cin >> B[i];
	int cost = 0;
	for (int i = 0; i <= N; ++i) {
		if ((A[i] ^ B[i]) != (A[i + 1] ^ B[i + 1])) {
			++cost;
		}
	}
	cout << cost / 2 << endl;
	return 0;
}