Deleting columns that are overlapping

How can I delete identical instances using dynamo that are at the same location using dynamo
?


for example here we have the same column at the same place , how can I delete one of them & keep the other ?
The script is much bigger , I just need to know how to delete these items
Thanks a lot

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@ahmadkhalaf7892 ,

i would recomment, take advantage of the warnings! you find also other stuff
sort your columns by that

fil01 = DSOffice.Data.ImportCSV(errRpt);
rpt01 = String.Remove(List.DropItems(List.DropItems(String.Concat(List.Transpose(fil01)),3),-1),0,4);

//Elements
eID01 = List.TakeEveryNthItem(rpt01,2,0);
eID02 = String.AllIndicesOf(eID01," id ");
eID03 = String.ToNumber(String.Substring(eID01,eID02+3,7));
elm01 = Revit.Elements.ElementSelector.ByElementId(eID03);

//Error Messages
err01 = List.TakeEveryNthItem(rpt01,2,1);
err02 = String.IndexOf(err01,">")+3;
err03 = String.LastIndexOf(err01,"<") - String.IndexOf(err01,">") - 5;
err04 = List.TakeItems(String.Substring(err01,err02,err03),List.Count(eID03));

select first item to rescue and delete the rest…

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