import random
list = []
numbers_range = random.randint(10, 20)
for i in range(numbers_range):
numbers = random.randint(1, 100)
i = numbers
list.append(i)
user_number = int(input('Введите число: '))
user_list = []
for j in list:
if j < user_number:
user_list.append(j)
print(list)
print(user_list)
Объяснение: