Newlist indexlist()
Newlist myfirstlist()
Newlist mysecondlist()
Newlist mythirdlist()
addelement(indexlist()
indexlist()=myfirstlist()
addelement(indexlist()
indexlist()=mysecondlist()
addelement(indexlist()
indexlist()=mythirdlist()
thethirdlist=selectelement(indexlist(),3)
addelement(thethirdlist)
[...]
the problem is that this code doesnt work, we need to use the original mythirdlist() to add an element to it

