1 files changed, 6 insertions, 5 deletions

diff --git a/2025/04/b.py b/2025/04/b.py
index 93b1fff..583c076 100644
--- a/2025/04/b.py
+++ b/2025/04/b.py
@@ -7,13 +7,14 @@ def neigh(a, i, j):
                 a[i+1][j-1], a[i+1][j], a[i+1][j+1],
         ].count('@')
 
-s = 0
 with fileinput.input() as lines:
-        a = [['.'] * 200]
-        for line in lines:
-                a.append(['.'] + list(line.replace('\n', '.')))
-        a.append(['.'] * 200)
+        a = [
+                ['.'] * 200,
+                *[['.'] + list(line.replace('\n', '.')) for line in lines],
+                ['.'] * 200,
+        ]
 
+s = 0
 rem = True
 while rem:
         rem = False