# coding=utf-8

id = 106
group = 'lists'
number = 13
visible = True
facts = None

solution = '''\
del106(X, [X|T], T).
del106(X, [Y|T], [Y|L]) :-
  del106(X, T, L).
insert(X, List, BigList) :-
  del106(X, BigList, List).
'''