import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    static long maximumPeople(long[] p, long[] x, long[] y, long[] r) {
        Map<Integer,Integer[]> c_c = new HashMap<>();
        for (int i = 0; i <= y.length; i++){
            c_c.put(i, new Integer[]{y[i]-r[i],y[i]+r[i]});
        }
        Map<Integer,Integer> ci_c = new HashMap<>();
        for (int i = 0; i <= x.length; i++){
           ci_c.put(i,0);
           for (int j = 0; j <= y.length; j++){
            Integer[] ranges = c_c.get(j);
               if (x[i] >= ranges[0] || x[i] <= ranges[1]) {
                   int oldNumOfClouds = ci_c.get(i);
                   oldNumOfClouds += 1;
                   ci_c.put(oldNumOfClouds);
               }
           }
        }
        
       Map<Integer,Integer> n_ci_c = ci_c.entrySet().stream().filter((city,nClouds) -> if (nClouds > 1) return false; else return true).collect(Collectors.toMap());
        
        int max_pop = n_ci_c.values().stream().max();
        
        Map<Integer,Integer> n_n_ci_c = ci_c.entrySet().stream().filter((city,nClouds) -> if (nClouds >= 1) return false; else return true).collect(Collectors.toMap());
        int zerocloud_sum = n_n_ci_c.values().stream().mapToInt(i -> i).sum();
        
        return max_pop + zerocloud_sum;
        
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        long[] p = new long[n];
        for(int p_i = 0; p_i < n; p_i++){
            p[p_i] = in.nextLong();
        }
        long[] x = new long[n];
        for(int x_i = 0; x_i < n; x_i++){
            x[x_i] = in.nextLong();
        }
        int m = in.nextInt();
        long[] y = new long[m];
        for(int y_i = 0; y_i < m; y_i++){
            y[y_i] = in.nextLong();
        }
        long[] r = new long[m];
        for(int r_i = 0; r_i < m; r_i++){
            r[r_i] = in.nextLong();
        }
        long result = maximumPeople(p, x, y, r);
        System.out.println(result);
        in.close();
    }
}