import java.io.*;
class Averages {

 public static final int MAX=100;
 
 public static void main(String[] args)
 throws IOException {
  int[] numcount = new int[MAX];
  BufferedReader in = new
    BufferedReader(new InputStreamReader(System.in));
  int i,count,num,sum,ncount=0;
  num=Integer.parseInt(in.readLine());
  for(count=0,sum=0;num>0;count++) {
      sum+=num;
      numcount[num]++;
      num=Integer.parseInt(in.readLine());
     }
  System.out.println("Mean value is: "+(double)sum/count);
  for(i=0;ncount<=count/2;i++)
    ncount+=numcount[i];
  System.out.println("Median value is "+(i-1));
 }
}