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+### https://theweeklychallenge.org/blog/perl-weekly-challenge-272/
+"""
+
+Task 2: String Score
+
+Submitted by: [46]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a string, $str.
+
+   Write a script to return the score of the given string.
+
+     The score of a string is defined as the sum of the absolute
+     difference between the ASCII values of adjacent characters.
+
+Example 1
+
+Input: $str = "hello"
+Output: 13
+
+ASCII values of characters:
+h = 104
+e = 101
+l = 108
+l = 108
+o = 111
+
+Score => |104 - 101| + |101 - 108| + |108 - 108| + |108 - 111|
+      => 3 + 7 + 0 + 3
+      => 13
+
+Example 2
+
+Input: "perl"
+Output: 30
+
+ASCII values of characters:
+p = 112
+e = 101
+r = 114
+l = 108
+
+Score => |112 - 101| + |101 - 114| + |114 - 108|
+      => 11 + 13 + 6
+      => 30
+
+Example 3
+
+Input: "raku"
+Output: 37
+
+ASCII values of characters:
+r = 114
+a = 97
+k = 107
+u = 117
+
+Score => |114 - 97| + |97 - 107| + |107 - 117|
+      => 17 + 10 + 10
+      => 37
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 9th June 2024.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+"""
+### solution by pokgopun@gmail.com
+
+def ss(string: str):
+    return sum(
+            abs(ord(p[0])-ord(p[1])) for p in
+            (string[i:i+2] for i in range(len(string)-1))
+            )
+
+import unittest
+
+class TestSs(unittest.TestCase):
+    def test(self):
+        for inpt, otpt in {
+                "hello": 13,
+                "perl": 30,
+                "raku": 37,
+                }.items():
+            self.assertEqual(ss(inpt),otpt)
+
+unittest.main()