#include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int n;       cin >> n;       vector<long long int> a(n);       vector<long long int> b(n);       for (int i = 0; i < n; i++) {         cin >> a[i];       }       for (int i = 0; i < n; i++) {         cin >> b[i];       }       long long int cnt = 0;       long long int min_a = *min_element(a.begin(), a.end());       long long int min_b = *min_element(b.begin(), b.end());       for (int i = 0; i < n; i++) {         if (a[i] > min_a && b[i] > min_b) {           long long int num;           num = min(a[i] - min_a, b[i] - min_b);           cnt += num;           a[i] -= num;           b[i] -= num;         }       }       for (int i = 0; i < n; i++) {         cnt += (a[i] - min_a);         cnt += (b[i] - min_b);       }       cout << cnt << endl;     }   }   