import java.util.Scanner;
import java.util.*;
import java.util.stream.Collectors;

public class Main {
 public static void main(String[] args) {
 // 获取输入
 Scanner sc = new Scanner(System.in);
 // 获取节点个数
 int number = sc.nextInt();
 // 获取道路个数
 int roadNumber = sc.nextInt();
 // 获取道路起点
 int[] begin = new int[roadNumber];
 for (int i = 0; i < roadNumber; i++) {
 begin[i] = sc.nextInt();
 }
 // 获取终点
 int[] end = new int[roadNumber];
 for (int i = 0; i < roadNumber; i++) {
 end[i] = sc.nextInt();
 }
 // 获取路径长度
 int[] value = new int[roadNumber];
 for (int i = 0; i < roadNumber; i++) {
 value[i] = sc.nextInt();
 }
 // 排序
 String[] sort = new String[roadNumber];
 for (int i = 0; i < roadNumber; i++) {
 sort[i] = value[i] + "-" + i;
 }
 Arrays.sort(sort);
 // set存储已经走过的节点
 HashSet<Integer> set = new HashSet<>();
 // 结果
 int res = 0;
 for (int i = 0; i < roadNumber; i++) {
 String[] split = sort[i].split("-");
 // 获取值
 int val = Integer.valueOf(split[0]);
 // 获取起点和终点
 int start = begin[Integer.valueOf(split[1])];
 int last = end[Integer.valueOf(split[1])];
 // 加入set
 if (!set.contains(start) || !set.contains(last)) {
 res += val;
 set.add(start);
 set.add(last);
 }
 }
 // 返回结果
 System.out.println(res);
 }
}