#include <bits/stdc++.h>
using namespace std;
const long long N = 1e5 + 5;
const long long mod = 1e9 + 7;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long n;
  cin >> n;
  long long a[n], b[n];
  for (long long i = 0; i < n; i++) cin >> a[i];
  for (long long i = 0; i < n; i++) cin >> b[i];
  sort(a, a + n, greater<long long>());
  sort(b, b + n, greater<long long>());
  long long i = 0, j = 0;
  long long v1 = 0, v2 = 0;
  for (long long c = 0; c < 2 * n; c++) {
    long long op1 = (i == n ? 0 : a[i]);
    long long op2 = (j == n ? 0 : b[j]);
    if (op1 >= op2) {
      i++;
      if (c % 2 == 0) v1 += op1;
    } else {
      j++;
      if (c & 1) v2 += op2;
    }
  }
  cout << v1 - v2;
}
