# coding=utf-8

id = 114
group = 'lists'
number = 21
visible = True
facts = None

solution = '''\
conc114([], L, L).
conc114([H|T], L2, [H|L]) :-
  conc114(T, L2, L).
shiftright(L1, [H|T]) :-
  conc114(T, [H], L1).
'''