diff --git a/project_euler/problem_56/sol1.py b/project_euler/problem_56/sol1.py
index 98094ea8eb28..96723be99ec7 100644
--- a/project_euler/problem_56/sol1.py
+++ b/project_euler/problem_56/sol1.py
@@ -1,33 +1,32 @@
-def maximum_digital_sum(a: int, b: int) -> int:
+"""
+Problem 56: https://projecteuler.net/problem=56
+
+A googol (10**100) is a massive number: one followed by one-hundred zeros;
+100**100 is almost unimaginably large: one followed by two-hundred zeros.
+Despite their size, the sum of the digits in each number is only 1.
+
+Considering natural numbers of the form, ab, where a, b < 100,
+what is the maximum digital sum?
+"""
+
+
+def solution(a: int = 100, b: int = 100) -> int:
     """
-    Considering natural numbers of the form, a**b, where a, b < 100,
-    what is the maximum digital sum?
-    :param a:
-    :param b:
-    :return:
-    >>> maximum_digital_sum(10,10)
+    Returns the maximum from the list of SUMs of the list of INT
+    converted from STR of BASE raised to the POWER
+    >>> solution(10,10)
     45
-
-    >>> maximum_digital_sum(100,100)
+    >>> solution(100,100)
     972
-
-    >>> maximum_digital_sum(100,200)
+    >>> solution(100,200)
     1872
     """
 
-    # RETURN the MAXIMUM from the list of SUMs of the list of INT converted from STR of
-    # BASE raised to the POWER
     return max(
-        [
-            sum([int(x) for x in str(base ** power)])
-            for base in range(a)
-            for power in range(b)
-        ]
+        sum(int(x) for x in str(base ** power))
+        for base in range(a)
+        for power in range(b)
     )
 
-
-# Tests
 if __name__ == "__main__":
-    import doctest
-
-    doctest.testmod()
+    print(f"{solution(100, 100)}")