using System;

public class Program

{

    public static void Main()

    {

        var message = "808885;966570328655;47730;1;A;3821ea550a128b3c2d6709ceb8c1f17f;;U;1020";

        var messageArgs = message.Split(';');

        var operatorTranId = messageArgs[5];

        Console.WriteLine("Operator Transaction Id : " + operatorTranId);

    }

}