#include <bits/stdc++.h>
using namespace std;
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }
template <typename T, typename V>
void __print(const pair<T, V> &x) {
  cerr << '{';
  __print(x.first);
  cerr << ',';
  __print(x.second);
  cerr << '}';
}
template <typename T>
void __print(const T &x) {
  long long f = 0;
  cerr << '{';
  for (auto &i : x) cerr << (f++ ? "," : ""), __print(i);
  cerr << "}";
}
void _print() { cerr << "]\n"; }
template <typename T, typename... V>
void _print(T t, V... v) {
  __print(t);
  if (sizeof...(v)) cerr << ", ";
  _print(v...);
}
using namespace std;
long long fun(long long a[], long long b[], long long n) {
  long long ans = 0;
  long long pa[n];
  for (long long i = 0; i < n; ++i) pa[a[i]] = i;
  long long push_back[n];
  for (long long i = 0; i < n; ++i) push_back[b[i]] = i;
  vector<long long> freq(n);
  for (long long i = 0; i < n; ++i) {
    if (pa[i] < push_back[i]) {
      long long k = n - 1 - push_back[i] + pa[i] + 1;
      freq[k]++;
    } else {
      long long k = pa[i] - push_back[i];
      freq[k]++;
    }
  }
  return *max_element((freq).begin(), (freq).end());
}
int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long T = 1;
  for (long long tp = 1; tp <= T; ++tp) {
    long long n;
    cin >> n;
    long long a[n];
    for (long long i = 0; i < n; ++i) {
      cin >> a[i];
      a[i]--;
    }
    long long b[n];
    for (long long i = 0; i < n; ++i) {
      cin >> b[i];
      b[i]--;
    }
    cout << (fun(a, b, n));
    cout << '\n';
  }
  return 0;
}
