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diff --git a/challenge-320/pokgopun/python/ch-1.py b/challenge-320/pokgopun/python/ch-1.py
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+### https://theweeklychallenge.org/blog/perl-weekly-challenge-320/
+"""
+
+Task 1: Maximum Count
+
+Submitted by: [43]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given an array of integers.
+
+   Write a script to return the maximum between the number of positive and
+   negative integers. Zero is neither positive nor negative.
+
+Example 1
+
+Input: @ints = (-3, -2, -1, 1, 2, 3)
+Output: 3
+
+There are 3 positive integers.
+There are 3 negative integers.
+The maximum between 3 and 3 is 3.
+
+Example 2
+
+Input: @ints = (-2, -1, 0, 0, 1)
+Output: 2
+
+There are 1 positive integers.
+There are 2 negative integers.
+The maximum between 2 and 1 is 2.
+
+Example 3
+
+Input: @ints = (1, 2, 3, 4)
+Output: 4
+
+
+There are 4 positive integers.
+There are 0 negative integers.
+The maximum between 4 and 0 is 4.
+
+Task 2: Sum Difference
+"""
+### solution by pokgopun@gmail.com
+
+def mc(ints: tuple[int]) -> int:
+    return max( sum(1 for e in ints if e < 0), sum(1 for e in ints if e > 0))
+
+import unittest
+
+class TestMc(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                (-3, -2, -1, 1, 2, 3): 3,
+                (-2, -1, 0, 0, 1): 2,
+                (1, 2, 3, 4): 4,
+                }.items():
+            self.assertEqual(mc(inpt), otpt)
+
+unittest.main()
+
+
diff --git a/challenge-320/pokgopun/python/ch-2.py b/challenge-320/pokgopun/python/ch-2.py
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+### https://theweeklychallenge.org/blog/perl-weekly-challenge-320/
+"""
+
+Task 2: Sum Difference
+
+Submitted by: [44]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given an array of positive integers.
+
+   Write a script to return the absolute difference between digit sum and
+   element sum of the given array.
+
+Example 1
+
+Input: @ints = (1, 23, 4, 5)
+Output: 18
+
+Element sum: 1 + 23 + 4 + 5 => 33
+Digit sum: 1 + 2 + 3 + 4 + 5 => 15
+Absolute difference: | 33 - 15 | => 18
+
+Example 2
+
+Input: @ints = (1, 2, 3, 4, 5)
+Output: 0
+
+Element sum: 1 + 2 + 3 + 4 + 5 => 15
+Digit sum: 1 + 2 + 3 + 4 + 5 => 15
+Absolute difference: | 15 - 15 | => 0
+
+Example 3
+
+Input: @ints = (1, 2, 34)
+Output: 27
+
+Element sum: 1 + 2 + 34 => 37
+Digit sum: 1 + 2 + 3 + 4 => 10
+Absolute difference: | 37 - 10 | => 27
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 11th May 2025.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+"""
+### solution by pokgopun@gmail.com
+
+def sd(ints: tuple[int]) -> int:
+    return abs(
+            sum(ints) - sum(
+                int(d) for d in "".join(
+                    str(e) for e in ints
+                    )
+                )
+            )
+
+import unittest
+
+class TestSd(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                (1, 23, 4, 5): 18,
+                (1, 2, 3, 4, 5): 0,
+                (1, 2, 34): 27,
+                }.items():
+            self.assertEqual(sd(inpt), otpt)
+
+unittest.main()
+