feat(challenge-173/lubos-kolouch/python/ch-{1,2}.py): Challenge 173 LK Python Task 1 2

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diff --git a/challenge-173/lubos-kolouch/python/ch-1.py b/challenge-173/lubos-kolouch/python/ch-1.py
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+""" Challenge 173 Task 1 LK """
+
+
+def is_esthetic_number(what: int) -> bool:
+    """Check if the number is esthetic"""
+
+    for pos, num in enumerate(str(what)[0:-1]):
+        if abs(int(num) - int(str(what)[pos + 1])) != 1:
+            return False
+
+    return True
+
+
+assert is_esthetic_number(5456) == 1
+assert is_esthetic_number(120) == 0