/**
 * @(#)p3.java
 *
 *
 * @author 
 * @version 1.00 2010/4/28
 */


import java.io.*;import java.util.*;
public class p3 {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException{
		BufferedReader in = new BufferedReader(new FileReader("DATA3.txt"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("OUT3.txt")));
		
		int remainNum = 0;
		int number = 0;
	  for (int j = 0; j < 5; j++){
	  
		remainNum = Integer.parseInt(in.readLine());
		int totalNum = remainNum + 1;
		for (int i = 0; i < remainNum;i++){
		number = Integer.parseInt(in.readLine());
		totalNum =  totalNum + i + 1 ;
		totalNum = totalNum - number;
		}
		out.println(totalNum);
		totalNum = 0;
		
	  }
		
		
		
		
		
			out.close();
		System.exit(0);

	}

}