diff --git a/src/2021/day01/main2.py b/src/2021/day01/main2.py
index 8135f07..8738330 100644
--- a/src/2021/day01/main2.py
+++ b/src/2021/day01/main2.py
@@ -10,7 +10,6 @@ def main():
 
     increased = 0
     for m in measurements[3:]:
-
         prev_sum = sum(prev)
 
         prev.popleft()
diff --git a/src/2021/day10/main.py b/src/2021/day10/main.py
index 707d371..1956564 100644
--- a/src/2021/day10/main.py
+++ b/src/2021/day10/main.py
@@ -22,7 +22,6 @@ def score_line(line):
 
 
 def score_line2(line):
-
     stack = deque()
     for sign in line:
         if is_opening(sign):
diff --git a/src/2022/day05/main.py b/src/2022/day05/main.py
index 7bc6477..959b6f4 100644
--- a/src/2022/day05/main.py
+++ b/src/2022/day05/main.py
@@ -27,7 +27,6 @@ def main():
     stacks_part1 = [s.copy() for s in stacks]
     stacks_part2 = [s.copy() for s in stacks]
     for move in moves:
-
         for _ in range(move.count):
             item = stacks_part1[move.from_stack].pop()
             stacks_part1[move.to_stack].append(item)
diff --git a/src/2022/day09/main.py b/src/2022/day09/main.py
index 2dbaab6..ff2b8dc 100644
--- a/src/2022/day09/main.py
+++ b/src/2022/day09/main.py
@@ -30,7 +30,6 @@ def solve(moves, line_len):
 
     for direction, count in moves:
         for _ in range(count):
-
             # move head
             head_pos = node_to_pos[0]
             if direction == "U":
diff --git a/src/2022/day17/main.py b/src/2022/day17/main.py
index 4df88ef..327060b 100644
--- a/src/2022/day17/main.py
+++ b/src/2022/day17/main.py
@@ -202,7 +202,6 @@ def drop_rock(chamber, directions, rocks):
     x, y = chamber.get_rock_initial_position(rock)
     falling = True
     while falling:
-
         # hot jet
         direction = directions.next()
         y2 = y + (1 if direction == Direction.RIGHT else -1)
diff --git a/src/2022/day20/main.py b/src/2022/day20/main.py
index de7d82d..37da46c 100644
--- a/src/2022/day20/main.py
+++ b/src/2022/day20/main.py
@@ -67,7 +67,6 @@ def list_to_string(initial_list: List[Number]) -> str:
 
 def mix_list(initial_list: List[Number]) -> None:
     for n in initial_list:
-
         shift = n.value % (len(initial_list) - 1)
 
         while shift > 0:
diff --git a/src/2022/day24/main.py b/src/2022/day24/main.py
index 1d4fef3..c8e97f5 100644
--- a/src/2022/day24/main.py
+++ b/src/2022/day24/main.py
@@ -211,7 +211,6 @@ def a_star(start_state: State, end_pos: Tuple[int, ...], mazes) -> Tuple[int, St
     queue.add(f_score[start_state], start_state)
 
     while not queue.empty():
-
         current_state = queue.pop_min()
         if current_state.distance_to_end(end_pos) == 0:
             return g_score[current_state], current_state