# Bài 4.6
# -------
# s = '12 drummers drumming, 11 pipers 23piping, 10 lords a-leaping'
# Print out list of all numbers in this string.
# Output::
# [12, 11, 23, 10]
s = '12 drummers drumming, 11 pipers 23piping, 10 lords a-leaping'
lst_s = s.split(" ")
numbers = []
lst_numbers = []
for chars in lst_s:
number = ''
for char in chars:
if char.isdigit():
number = number + char
numbers.append(number)
for char in numbers:
if char == '':
continue
if char.isdigit():
lst_numbers.append(char)
print(lst_numbers)
