import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
# Import ToDSType(bool) extension method
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
# Import geometry conversion extension methods
clr.ImportExtensions(Revit.GeometryConversion)
# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from System.Collections.Generic import *
# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *

doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application

elt = []
for i in IN[0]:
    elt.append(UnwrapElement(i).Id)

# Start Transaction
TransactionManager.Instance.EnsureInTransaction(doc)


cantdelete=[]
for item in elt:
    try:
        doc.Delete(item)
    except:
        cantdelete.append(item)


# End Transaction
TransactionManager.Instance.TransactionTaskDone()
doc.Regenerate()
OUT=cantdelete