Answer to Question #284197 in Python for archana

Question

Lexicographic order

peter wants to arrange the words in ascending order of their length and later arrange the ones with the same length in lexicographic order. Each word is given in a serial number according to its position. Find the word according to the serial number

Word serial

 A  1

B  2

C  3

.. ..

X 24

Y 25

Z  26

AA 27

BB  28

... ..

BA  53

...  ...

ZZ  702

AA 703

.. ...

INPUT

The first line of input is a positive integer which is the serial number

OUTPUT

The output should be a single line containing the word that represents the serial number.

EXPLANATION

Given serial number is 42

As the serial number is between 26 and 52, the first character of the word is A. The remaining counter of the serial number is 16 (42-26)

The second character of the word is the 16th alphabet, which is P

So, the output should be AP

input

42

output

AP

input

751

output

ABW

Answer 1

from string import ascii_uppercase
import itertools

def iter_all_strings():
    for size in itertools.count(1):
        for s in itertools.product(ascii_uppercase, repeat=size):
            yield "".join(s)

num = int(input())

lst = []
for s in iter_all_strings():
    lst.append(s)
    if len(lst) == num:
        print(lst[-1])
        break

I have changed the answer, it is correct version