import clr
clr.AddReference(‘ProtoGeometry’)
from Autodesk.DesignScript.Geometry import *

listLevels = IN[0]
items = IN[1]
zones = IN[2]

outList = []

for i, level in enumerate(listLevels):

	listTemp = []
	item = items[i]
	listZone = zones[i]

	for k, insideLevel in enumerate(level):
	
		string = insideLevel + item + listZone[k]
		listTemp.Add(string)
	
	outList.Add(listTemp)
OUT = outList