import java.util.*;
import java.io.*;

public class Q2{
    public static void main(String[] args) throws Exception{
        Scanner in = new Scanner(new File("DATA2.txt"));
        PrintWriter out = new PrintWriter(new FileWriter("OUT2.txt"));
        for(int i = 0; i < 5; i++){
            int N = in.nextInt();
            int total = 0;
            for(int j = 2; j <= N; j++){
                if(isPrime(j))
                    total += j;
            }
            out.println(total);
        }
        out.close();
    }
    public static boolean isPrime(int a){
        for(int i = 2; i < (int)Math.sqrt(a) + 1; i++){
            if(a%i == 0){
                return false;
            }
        }
        return true;
    }
}