using System;

using System.StringNormalizationExtensions;                 

public class Program

{

    public static void Main()

    {

        /*Program 1 remove leading zeros from the string*/

        string str = "000B123";

        string str2;

        int j=0;

        for(int i=0 ; i < 7 ; i++)

        {

            if(strcmp(str[i],"0"))

            {

                str2[j]==str[i];

                    j++;

            }

        }

        for(int k=0; k<7 ; k++)

        {

            Console.Write(str2[k]);

        }

    }

}