50 50
75 71 23 37 28 23 69 75 5 62 3 11 96 100 13 50 57 51 8 90 4 6 84 27 11 89 95 81 10 62 48 52 69 87 97 95 30 74 21 42 36 64 31 80 81 50 56 53 33 99
26 30 5 33 35 29 6 15 36 17 32 16 14 1 29 34 22 40 12 42 38 48 39 50 13 47 18 43 10 8 49 45 11 31 21 37 46 28 20 41 2 7 9 24 27 23 3 44 15 14
 10 10
61 59 97 16 2 94 57 48 91 93
2 8 6 5 3 1 3 4 9 10
 2 1
1 2
1
 3 3
10 20 30
1 2 3
 50 60
86 57 45 93 17 12 40 10 47 80 18 80 3 9 6 55 13 99 5 76 4 70 100 55 27 91 71 3 65 93 41 74 80 56 90 50 58 13 71 9 47 52 26 73 72 21 15 81 88 28
40 32 5 16 49 23 3 17 14 10 1 15 1 21 28 22 13 45 12 25 44 48 46 32 36 43 11 8 49 7 7 35 10 14 39 4 42 10 30 27 1 17 31 15 8 41 44 33 25 26 19 18 29 37 50 6 36 38 47 9
 2 7
20 30
1 1 1 2 2 2 2
 2 2
10 12
2 1
 5 1
16 87 36 16 81
3
 2 3
20 30
1 1 1
 2 10
39 26
1 1 2 2 2 2 2 2 1 2

63929
 2137
 0
 40
 62514
 20
 12
 0
 0
 104

import java.util.Scanner;


public class New_Year_Book_Reading {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner in=new Scanner(System.in);
		int n=in.nextInt();
		int m=in.nextInt();
		int k;
	for(int i=0;i<n;i++)
		 k= in.nextInt();
	
	int books[]=new int [n];
	int days[]=new int [m];
	
	for(int i=0;i<m;i++){
		days[i]=in.nextInt();
	 }
	
	for(int i=0;i<n;i++){
		books[i]=days[i];
	}
//	for(int i=0;i<n;i++){
//		System.out.print(books[i]+" ");
//	}
	
	int total=0;
	for(int i=0;i<days.length;i++){
		int index=index(books,days[i]);
	//	System.out.println(index);
		total+=sum(books,index);
	//	System.out.println(total);
		books=pop(books, days[i]);
		//System.out.println();
	}
	System.out.println(total);
	
	
	
//	System.out.println();
//	System.out.println(index(books, 2));
//	System.out.println(sum(books, index(books, 2)));
//	int arr[]=pop(books, 2);
//	pop(arr,3);
	
	
	}
	
	public static int index(int []arr,int a){
		int index=0;
		int arr1[]=new int[arr.length];
		for(int i=0;i<arr.length;i++){
			if(a==arr[i]){
				index=i;
				break;
			}}
		return index;
	}
	public static int sum(int []arr,int index){
		int sum=0;
		for(int i=0;i<index;i++){
			sum+=arr[i];
		}
		return sum;
		
	}
	public static int[] pop(int []arr,int a){
		int index=index(arr, a);
		int arr1[]=new int[arr.length];
		for(int i=0;i<arr.length;i++){
			arr1[i]=arr[i];
		}
		arr1[0]=arr[index];
		for(int i=0;i<index;i++){
			arr1[i+1]=arr[i];
		
		}
//		for(int i=0;i<arr.length;i++)
//			System.out.print(arr1[i]+" ");
//		
		return arr1;
	}
	

}
