diff --git a/novikovsd/maze.py b/novikovsd/maze.py
index cb9c6dd..fd23ea5 100644
--- a/novikovsd/maze.py
+++ b/novikovsd/maze.py
@@ -1,4 +1,3 @@
-import sys
 import time
 import csv
 from collections import deque
@@ -24,7 +23,7 @@ class Cell:
         return f"Cell({self.x},{self.y})"
 
 class Maze:
-        def __init__(self, width: int, height: int):
+    def __init__(self, width: int, height: int):
         self.width = width
         self.height = height
         self.cells: List[List[Cell]] = []