import java.util.Scanner;
public class Tugas8_1
{
    public static void main(String args[])
    {
        Scanner in = new Scanner(System.in);
        int panjang;
        int i = 0;
        float jumlah = 0;
        float rata;
        System.out.print("Panjang data = ");
        panjang = in.nextInt();
        int[] data = new int[panjang];
        while(i <= panjang - 1)
        {
            System.out.print("Data"+i+" = ");
            data[i] = in.nextInt();
            jumlah = jumlah + data[i];
            i=i+1;
        }
        rata = jumlah/panjang;
        System.out.println("Jumlah = "+jumlah);
        System.out.println("rata-rata = "+rata);
    }
}