[编程题] 小易记单词代码

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while(in.hasNext()) {
            int n = in.nextInt();
            int m = in.nextInt();
            Set<String> ming = new HashSet<>();
            Set<String> ans = new HashSet<>();
            for(int i=0;i<n;i++)
                ming.add(in.next());
            for(int i=0;i<m;i++)
                ans.add(in.next());
            Iterator<String> it = ming.iterator();
            int score = 0;
            while(it.hasNext()) {
                String s = it.next();
                if(ans.contains(s)) {
                    score += s.length() * s.length();
                    ans.remove(s);
                }
            }
            System.out.println(score);
        }
    }
}