Так как язык не указан, приведу пример на SWI-Prolog.
Код:
read_int(Int) :- read(Int), integer(Int).split_int_by_numbers(0, []) :- !.split_int_by_numbers(N, [Number|Ints]) :- Number is mod(N, 10), RestN is div(N, 10), split_int_by_numbers(RestN, Ints).test_to_div(_, []).test_to_div(N, [Number|Ints]) :- mod(N, Number) =:= 0, test_to_div(N, Ints). test(Int) :- split_int_by_numbers(Int, Numbers), test_to_div(Int, Numbers), write(Int), write(" - Yes!"), nl.test(Int) :- write(Int), write(" - No!"), nl.?- read_int(Int), test(Int).
n = int(input())
max = n
min = n
while (n != 0):
n = int(input())
if n != 0:
if n > max:
max = n
elif n < min:
min = n
print(min,max)
Input/Output:5
7
2
3
0
2 7
4 числа, разделенные точками. Числа от 0 до 255.
1) Б-В-А-Г.
2) Г-Б-А-В.