#include <bits/stdc++.h>
#define sz(x) int(x.size())
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#define N 100500
#define oo ll(1e16)
#define ft first
#define sd second
#define mp make_pair
#define pb push_back
#define ppb pop_back
#define el '\n'
#define elf endl
#define base ll(1e9 + 7)
using namespace std;
typedef long long ll;
typedef long double ld;
int n, a[N];
map <int, int> m;
int main() {
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
// in("input.txt");
cin >> n;
for (int i = 0; i < n; i++)
cin >> a[i];
for (int i = 0; i < n; i++) {
int x;
cin >> x;
m[x - a[i]]++;
}
int ans = 0;
for (map <int, int> :: iterator it = m.begin(); it != m.end(); it++)
ans = max(ans, it -> sd);
cout << ans;
}
