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diff --git a/challenge-278/pokgopun/python/ch-1.py b/challenge-278/pokgopun/python/ch-1.py
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+### https://theweeklychallenge.org/blog/perl-weekly-challenge-278/
+"""
+
+Task 1: Sort String
+
+Submitted by: [51]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a shuffle string, $str.
+
+   Write a script to return the sorted string.
+
+     A string is shuffled by appending word position to each word.
+
+Example 1
+
+Input: $str = "and2 Raku3 cousins5 Perl1 are4"
+Output: "Perl and Raku are cousins"
+
+Example 2
+
+Input: $str = "guest6 Python1 most4 the3 popular5 is2 language7"
+Output: "Python is the most popular guest language"
+
+Example 3
+
+Input: $str = "Challenge3 The1 Weekly2"
+Output: "The Weekly Challenge"
+
+Task 2: Reverse Word
+"""
+### solution by pokgopun@gmail.com
+
+'''
+def sortString(string: str):
+    return " ".join(
+            e[:-1] for e in sorted(
+                string.split(), key=lambda x: x[-1]
+                )
+            )
+'''
+
+def rankWord(string: str):
+    i = 0
+    while string[i-1].isdigit():
+        i -= 1
+    return (int(string[i:]),string[:i])
+
+def sortString(string: str):
+    return " ".join(
+            e[1] for e in sorted(
+                rankWord(x) for x in string.split()
+                )
+            )
+
+import unittest
+
+class TestSortString(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                "and2 Raku3 cousins5 Perl1 are4": "Perl and Raku are cousins",
+                "guest6 Python1 most4 the3 popular5 is2 language7": "Python is the most popular guest language",
+                "Challenge3 The1 Weekly2": "The Weekly Challenge",
+                }.items():
+            self.assertEqual(sortString(inpt),otpt)
+
+unittest.main()
diff --git a/challenge-278/pokgopun/python/ch-2.py b/challenge-278/pokgopun/python/ch-2.py
new file mode 100644
index 0000000000..a5e1e34059
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+++ b/challenge-278/pokgopun/python/ch-2.py
@@ -0,0 +1,55 @@
+### https://theweeklychallenge.org/blog/perl-weekly-challenge-278/
+"""
+
+Task 2: Reverse Word
+
+Submitted by: [52]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a word, $word and a character, $char.
+
+   Write a script to replace the substring up to and including $char with
+   its characters sorted alphabetically. If the $char doesn’t exist then
+   DON'T do anything.
+
+Example 1
+
+Input: $str = "challenge", $char = "e"
+Ouput: "acehllnge"
+
+Example 2
+
+Input: $str = "programming", $char = "a"
+Ouput: "agoprrmming"
+
+Example 3
+
+Input: $str = "champion", $char = "b"
+Ouput: "champion"
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 21st July 2024.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+"""
+### solution by pokgopun@gmail.com
+
+def reverseWord(word, char):
+    i = word.find(char)
+    if i < 0:
+        return word
+    return "".join(sorted(word[:i+1]))+word[i+1:]
+
+import unittest
+
+class TestReverseWord(unittest.TestCase):
+    def test(self):
+        for (word,char), otpt in {
+                ("challenge", "e"): "acehllnge",
+                ("programming", "a"):"agoprrmming",
+                ("champion", "b"): "champion",
+                }.items():
+            self.assertEqual(reverseWord(word,char), otpt)
+
+unittest.main()