// CSCI 2530
// Assignment: 1
// Author:     ***your name***
// File:       average.cpp
// Tab stops:  @@

//=======================================================
// This program does two main steps.
//
// 1. It reads 3 integers and writes their median.
//
// 2. After that, it reads integers until it reads -1.
//    Then it writes the mean of those integers, excluding
//    -1.
//
// For example, if the input is
//   3 8 2 10 11 15 -1
// then the output is:
//
// The median of (3, 8, 2) is 3.
// The mean of (10, 11, 15) is 12.00
//=======================================================

#include <cstdio>
using namespace std;

*** write your program here.