#include <bits/extc++.h>

#ifndef DUMP
#define DUMP(...) (void)0
#endif

using namespace std;

template <class S>
auto rle(const S& s) {
  vector<pair<typename S::value_type, int>> res;
  for (auto c : s)
    if (empty(res) or res.back().first != c)
      res.emplace_back(c, 1);
    else
      ++res.back().second;
  return res;
}

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int n;
  cin >> n;
  vector<int> a(n), b(n), c(n);
  for (auto&& e : a) cin >> e;
  for (auto&& e : b) cin >> e;
  for (int i = 0; i < n; ++i) c[i] = a[i] != b[i];
  int res = 0;
  for (auto [x, y] : rle(c))
    if (x) ++res;
  cout << res << '\n';
}