using System;

using System.Collections;

using System.Collections.Generic;

using System.Data;

using System.Linq;

using System.Reflection;

using System.Web;

public class Program

{

    public class GroupField

        {

            public string GroupName { get; set; }

            public string FieldName { get; set; }

            public string Sequence { get; set; }

            public string IsDiffer { get; set; }

            public string DifferFrom { get; set; }

            public string FieldFrom { get; set; }

        }

    public static void Main()

    {

        List<GroupField> lstResult = new List<GroupField>();

        List<GroupField> lstS = new List<GroupField>();

        List<GroupField> lstT = new List<GroupField>();

        GroupField objS = new GroupField();

        objS.GroupName = "G1";

        objS.FieldName = "A";

        objS.Sequence = "1";

        objS.IsDiffer = "";

        objS.DifferFrom = "";

        objS.FieldFrom = "S";

        lstS.Add(objS);

​

        GroupField objS1 = new GroupField();

        objS1.GroupName = "G1";

        objS1.FieldName = "B";

        objS1.Sequence = "2";

        objS1.IsDiffer = "";

        objS1.DifferFrom = "";

        objS1.FieldFrom = "S";

        lstS.Add(objS1);

​

        GroupField objS2 = new GroupField();

        objS2.GroupName = "G2";

        objS2.FieldName = "C";

        objS2.Sequence = "1";

        objS2.IsDiffer = "";

        objS2.DifferFrom = "";

        objS2.FieldFrom = "S";

        lstS.Add(objS2);

​

        GroupField objS3 = new GroupField();

        objS3.GroupName = "G3";

        objS3.FieldName = "D";

        objS3.Sequence = "1";

        objS3.IsDiffer = "";

        objS3.DifferFrom = "";

        objS3.FieldFrom = "S";

        lstS.Add(objS3);

​

        GroupField objS4 = new GroupField();

        objS4.GroupName = "G3";

        objS4.FieldName = "E";

        objS4.Sequence = "2";

        objS4.IsDiffer = "";

        objS4.DifferFrom = "";

        objS4.FieldFrom = "S";

        lstS.Add(objS4); 

        GroupField objT = new GroupField();

        objT.GroupName = "G1";

        objT.FieldName = "C";

        objT.Sequence = "1";

        objT.IsDiffer = "";

        objT.DifferFrom = "";

        objT.FieldFrom = "T";

        lstT.Add(objT);

​

        GroupField objT1 = new GroupField();

        objT1.GroupName = "G1";

        objT1.FieldName = "A";

        objT1.Sequence = "2";

        objT1.IsDiffer = "";

        objT1.DifferFrom = "";

        objT1.FieldFrom = "T";

        lstT.Add(objT1);

​

        GroupField objT2 = new GroupField();

        objT2.GroupName = "G1";

        objT2.FieldName = "B";

        objT2.Sequence = "3";

        objT2.IsDiffer = "";

        objT2.DifferFrom = "";

        objT2.FieldFrom = "T";

        lstT.Add(objT2);

​

        GroupField objT3 = new GroupField();

        objT3.GroupName = "G2";

        objT3.FieldName = "D";

        objT3.Sequence = "1";

        objT3.IsDiffer = "";

        objT3.DifferFrom = "";

        objT3.FieldFrom = "T";

        lstT.Add(objT3);

​

        GroupField objT4 = new GroupField();

        objT4.GroupName = "G2";

        objT4.FieldName = "E";

        objT4.Sequence = "2";

        objT4.IsDiffer = "";

        objT4.DifferFrom = "";

        objT4.FieldFrom = "T";

        lstT.Add(objT4);

    }

}