+++ /dev/null
-import java.io.*;
-public class analyze {
- public static void main(String[] q) {
- int sum=0;
- int count=0;
- try {
- BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
- while(true) {
- String s=br.readLine();
- String x=s.substring(6,s.indexOf(' ',6));
-
- sum+=(new Integer(x)).intValue();
- count++;
- System.out.println(sum+" "+(((double)sum)/count));
- }
- } catch(Exception e) {}
- }
-
-
-
-}