using System;

public class Program

{

        static void Main(string[] args)

        {

​

            Console.WriteLine("Input a string of numbers");

            string digitstring = Console.ReadLine();

            for (int i = 1; i < 10; i++)

            {

                int digitcounter = 0;

                for (int j = 0; j < digitstring.Length;j++)

                {

                    if (i == digitstring[j])

                    {

                        digitcounter++;

​

                    }

                }

                Console.WriteLine(i + " " + digitcounter);

            }

            Console.ReadLine();

        }

}