// "Say:He is the Most Merciful,We have believed in him and upon him we have relied" [67:29]
#include<bits/stdc++.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n; cin >> n;
vector<int>a(n), b(n);
for(int i=0; i<n; i++){
cin >> a[i];
}
for(int i=0; i<n; i++){
cin >> b[i];
}
map<int,int>mp;
for(int i=0; i<n; i++){
// a[i] + __ = b[i]
// __ = b[i] - a[i];
mp[b[i] - a[i]]++;
}
int ans = 0;
for(auto u:mp){
ans = max(ans, u.second);
}
cout << ans << '\n';
return 0;
}
