Problem:
List of Top 3 Hills

There is a data which provides heights (in meter) of mountains. The data is only for ten mountains.

Write a program which prints heights of the top three mountains in descending order.

Input

Height of mountain 1
Height of mountain 2
Height of mountain 3
.
.
Height of mountain 10

Constraints

0 ≤ height of mountain (integer) ≤ 10,000

Output

Height of the 1st mountain
Height of the 2nd mountain
Height of the 3rd mountain

Sample Input 1

1819
2003
876
2840
1723
1673
3776
2848
1592
922

Output for the Sample Input 1

3776
2848
2840

Sample Input 2

100
200
300
400
500
600
700
800
900
900

Output for the Sample Input 2

900
900
800

Solution in C# (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApp15
{
    public class Program
    {
       static void Main(string[] args)
        { List<int> b = new List<int>();
            for (int f = 0; f < 10; f++)
            {
                int a = int.Parse(Console.ReadLine());
                b.Add(a);
            }
            b.Sort();
            Console.Write(b[7] + "\n");
            Console.Write(b[8] + "\n");
            Console.Write(b[9] + "\n");
        }
    }
}