#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; i++)
using namespace std;

typedef long long ll;

int main() {
    int N;
    cin >> N;
    vector<int> A(N), B(N);
    rep(i, N) cin >> A[i];
    rep(i, N) cin >> B[i];
    int c = 1;
    rep(i, N - 1) {
        if ((A[i] ^ B[i]) != (A[i + 1] ^ B[i + 1])) c++;
    }
    cout << (c + 1) / 2 << "\n";
}