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diff --git a/challenge-332/pokgopun/python/ch-1.py b/challenge-332/pokgopun/python/ch-1.py
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+### https://theweeklychallenge.org/blog/perl-weekly-challenge-332/
+"""
+
+Task 1: Binary Date
+
+Submitted by: [39]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a date in the format YYYY-MM-DD.
+
+   Write a script to convert it into binary date.
+
+Example 1
+
+Input: $date = "2025-07-26"
+Output: "11111101001-111-11010"
+
+Example 2
+
+Input: $date = "2000-02-02"
+Output: "11111010000-10-10"
+
+Example 3
+
+Input: $date = "2024-12-31"
+Output: "11111101000-1100-11111"
+
+Task 2: Odd Letters
+"""
+### solution by pokgopun@gmail.com
+
+def bd(string: str) -> str:
+    return "-".join(bin(int(e))[2:] for e in string.split("-"))
+
+import unittest
+
+class TestBd(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                "2025-07-26": "11111101001-111-11010",
+                "2000-02-02": "11111010000-10-10",
+                "2024-12-31": "11111101000-1100-11111",
+                }.items():
+            self.assertEqual(bd(inpt),otpt)
+
+unittest.main()
diff --git a/challenge-332/pokgopun/python/ch-2.py b/challenge-332/pokgopun/python/ch-2.py
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+### https://theweeklychallenge.org/blog/perl-weekly-challenge-332/
+"""
+
+Task 2: Odd Letters
+
+Submitted by: [40]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a string.
+
+   Write a script to find out if each letter in the given string appeared
+   odd number of times.
+
+Example 1
+
+Input: $str = "weekly"
+Output: false
+
+w: 1 time
+e: 2 times
+k: 1 time
+l: 1 time
+y: 1 time
+
+The letter 'e' appeared 2 times i.e. even.
+
+Example 2
+
+Input: $str = "perl"
+Output: true
+
+Example 3
+
+Input: $source = "challenge"
+Output: false
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 3rd August
+   2025.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+"""
+### solution by pokgopun@gmail.com
+
+def ol(string: str) -> bool:
+    cc: dict[str,int] = {}
+    for c in string:
+        cc[c] = cc.get(c,0) + 1
+    for v in cc.values():
+        if v % 2 == 0:
+            return False
+    return True
+
+import unittest
+
+class TestOl(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                "weekly": False,
+                "perl": True,
+                "challenge": False,
+                }.items():
+            self.assertEqual(ol(inpt),otpt)
+
+unittest.main()