package com.codegym.task.task05.task0507;
/*
Arithmetic mean
*/
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;
public class Solution {
public static void main(String[] args) throws Exception {
//BufferedReader bu = new BufferedReader(new InputStreamReader(System.in));
Scanner scan = new Scanner(System.in);
int count = 0;
double result = 0;
int sum = 0;
while(true)
{
int a = scan.nextInt();
if(a == -1)
break;
if(a != 0)
{
count++;
sum += a;
}
}
result = (double) sum/count;
System.out.println(result);
}
}
package com.codegym.task.task05.task0507;
/*
Arithmetic mean
*/
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;
public class Solution {
public static void main(String[] args) throws Exception {
//BufferedReader bu = new BufferedReader(new InputStreamReader(System.in));
Scanner scan = new Scanner(System.in);
int count = 0;
double result = 0;
int sum = 0;
while(true)
{
int a = scan.nextInt();
if(a == -1)
break;
if(a != 0)
{
count++;
sum += a;
}
}
result = (double) sum/count;
System.out.println(result);
}
}