diff --git a/day03.py b/day03.py
index 640aad3..c72b117 100644
--- a/day03.py
+++ b/day03.py
@@ -24,7 +24,7 @@ class Day03(AocSameParser[list[Number]], Aoc2[list[Number], list[Number]]):
         symbol = None
         for x in range(max(0, startx - 1), min(len(inpt[0]), endx + 1)):
             yrange = [liney - 1, liney, liney + 1]
-            if x != startx - 1 and x != endx:
+            if x not in (endx, startx - 1):
                 yrange.remove(liney)
             if liney == 0:
                 yrange.remove(liney - 1)
@@ -76,7 +76,7 @@ class Day03(AocSameParser[list[Number]], Aoc2[list[Number], list[Number]]):
         return numbers
 
     def part1(self, inpt: list[Number]) -> int:
-        return sum([number.value for number in inpt if number.symbol is not None])
+        return sum(number.value for number in inpt if number.symbol is not None)
 
     def part2(self, inpt: list[Number]) -> Any:
         gears_to_number = defaultdict(list)