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

class Average11
{
// A program to calculate the average of a series of integers
// read as a single line (uses StringTokenizer).
// Long version - all statements expanded.

 public static void main(String[] args) throws IOException
 {
  String numberString,nextToken,dstring;
  StringTokenizer tokens;
  BufferedReader in;
  InputStreamReader in1;
  int sum,nextInt,count;
  double sum1,average;

  in1 = new InputStreamReader(System.in);
  in =  new BufferedReader(in1);
  System.out.println("Enter the numbers (on one line): ");
  numberString=in.readLine();
  tokens = new StringTokenizer(numberString);
  sum=0;
  count=0;
  while(tokens.hasMoreTokens())
     {
      nextToken=tokens.nextToken();
      nextInt=Integer.parseInt(nextToken);
      sum=sum+nextInt;
      count=count+1;
     }
  sum1=(double)sum;
  average=sum1/count;
  dstring=Text.writeDouble(average,5,3);
  System.out.println("Average is: "+dstring);
 }

}