using System;

class Program
{
    static void Main()
    {
        Console.Write("Enter a string: ");
        string str = Console.ReadLine().ToLower();

        int[] freq = new int[256]; 

        foreach (char ch in str)
        {
            if (ch != ' ')
                freq[ch]++;
        }

        int max = 0;
        char maxChar = ' ';

        for (int i = 0; i < 256; i++)
        {
            if (freq[i] > max)
            {
                max = freq[i];
                maxChar = (char)i;
            }
        }

        Console.WriteLine("Maximum occurring character: " + maxChar);
        Console.WriteLine("Occurrences: " + max);
    }
}