func_code_string: #include <bits/stdc++.h>   using namespace std;   void err(istream_iterator<string> it) {}   template <typename T, typename... Args>   void err(istream_iterator<string> it, T a, Args... args) {     cerr << *it <<   =   << a << endl;     err(++it, args...);   }   inline int add(int a, int b) {     a += b;     return a >= 1000000007 ? a - 1000000007 : a;   }   inline int sub(int a, int b) {     a -= b;     return a < 0 ? a + 1000000007 : a;   }   inline int mul(int a, int b) { return (long long int)a * b % 1000000007; }   int Set(int N, int pos) { return N = N | (1 << pos); }   int Reset(int N, int pos) { return N = N & ~(1 << pos); }   bool Cheek(int N, int pos) { return (bool)(N & (1 << pos)); }   int a[1000005], b[1000005], lft[1000005], rgt[1000005], addina[1000005];   void Solve(int t) {     int i, j, k, n, ans = 0;     scanf( %d , &(n));     for (__typeof(i) i = 1; i <= n; i++) {       scanf( %d , &(a[i]));       addina[a[i]] = i;     }     for (__typeof(i) i = 1; i <= n; i++) scanf( %d , &(b[i]));     for (i = 1; i <= n; i++) {       int address = addina[b[i]];       int needlft = (n - address + i) % n;       lft[needlft]++;       int needrgt = (address - i + n) % n;       rgt[needrgt]++;     }     for (i = 0; i <= n; i++) {       ans = max(ans, lft[i]);       ans = max(ans, rgt[i]);     }     cout << ans << endl;   }   int main() {     int t, T;     T = 1;     for (__typeof(t) t = 1; t <= T; t++) {       Solve(t);     }     return 0;   }   