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diff --git a/challenge-053/user-person/python/ch-2.py b/challenge-053/user-person/python/ch-2.py
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+#!/usr/bin/env python3
+
+###########################################################################
+# script name: ch-2.py                                                    #
+# Thu Mar 26 00:42:17 2020 | 1585197737                                   #
+#                                                                         #
+# https://github.com/user-person                                          #
+#                                                                         #
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-053/         #
+#                                                                         #
+# Vowel Strings                                                           #
+#                                                                         #
+# Write a script to accept an integer 1 <= N <= 5 that would print all    #
+# possible strings of size N formed by using only vowels (a, e, i, o, u). #
+# The string should follow the following rules:                           #
+#                                                                         #
+# 1. 'a' can only be followed by 'e' and 'i'.                             #
+# 2. 'e' can only be followed by 'i'.                                     #
+# 3. 'i' can only be followed by 'a', 'e', 'o', and 'u'.                  #
+# 4. 'o' can only be followed by 'a' and 'u'.                             #
+# 5. 'u' can only be followed by 'o' and 'e'.                             #
+#                                                                         #
+###########################################################################
+
+import os
+import re
+import sys
+
+# https://is.gd/lOmciv
+def toStr(n,base):
+    convertString = "01234"
+    if n < base:
+        return convertString[n]
+    else:
+        return toStr(n//base,base) + convertString[n%base]
+
+scriptName = os.path.basename(sys.argv[0])
+
+num = 0
+
+try:
+    num = int(sys.argv[1])
+except IndexError:
+    sys.stderr.write(scriptName + ' requires an argument. Argument should be 1 <= n <= 5\n')
+    exit(1)
+
+if num < 1 or num > 5:
+    sys.stderr.write('Invalid choice. Argument should be 1 <= n <= 5\n')
+    exit(1)
+
+vowels = ( 'a', 'e', 'i', 'o', 'u')
+MAX = int('4' * num,5) 
+
+j = 0
+for i in range(0,MAX):
+    j = int(toStr(i,5))
+
+    j = '{number:0{size}d}'.format(number=j,size=num)
+#     if num == 1:
+#         j = '{num:01d}'.format(num=j)
+#     elif num == 2:
+#         j = '{num:02d}'.format(num=j)        
+#     elif num == 3:
+#         j = '{num:03d}'.format(num=j)
+#     elif num == 4:
+#         j = '{num:04d}'.format(num=j)
+#     elif num == 5:
+#         j = '{num:05d}'.format(num=j)
+
+    string = ''
+    for k in str(j):
+        string += vowels[int(k)]
+
+    if re.search(r'a[^ei]',string) \
+            or  re.search(r'e[^i]',string) \
+            or  re.search(r'o[^au]',string) \
+            or  re.search(r'i[^aeou]',string) \
+            or  re.search(r'u[^oe]',string):
+        continue
+    else:
+         print(string)