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

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            Random rand = new Random();
            int[] array = new int[100];
            for (int i = 0; i < 100; i++)
            {
                array[i] = rand.Next(0, 30);
            }

            Dictionary<int, int> counts = new Dictionary<int, int>();
            foreach (int num in array)
            {
                if (counts.ContainsKey(num))
                    counts[num]++;
                else
                    counts.Add(num, 1);
            }

            foreach (KeyValuePair<int, int> kvp in counts)
            {
                Console.WriteLine("there are {0} number of {1}", kvp.Value, kvp.Key);
            }

            Console.ReadLine();
        }
    }
}