Print the sum of digits of numbers starting from 1 to 100 (inclusive of both)

print sum(range(1,101))


Create a new list that converts the following list of number strings to a list of numbers.
num_strings = ['1','21','53','84','50','66','7','38','9']

[int(i) for i in num_strings]
[1, 21, 53, 84, 50, 66, 7, 38, 9]