diff --git a/python/day01.py b/python/day01.py
new file mode 100644
index 0000000..6fea513
--- /dev/null
+++ b/python/day01.py
@@ -0,0 +1,66 @@
+from utils.load import get_input
+from utils.day import DayBase
+from dataclasses import dataclass
+import logging
+
+@dataclass
+class Day01(DayBase):
+    def __init__(self, *args, **kargs):
+        super().__init__(*args, **kargs)
+
+    def parse_data(self, input: str):
+        return input.splitlines()
+    
+    def solve_part1(self, data: list[str])-> int:
+        count = 0
+        current = 50
+
+        for value in data:
+            if value[0] == 'L':
+                current = (current - int(value[1:])) % 100
+            else:
+                current = (current + int(value[1:])) % 100
+
+            if current == 0:
+                count += 1
+            logging.debug("%s -> %s (count: %s)", value, current, count)
+        return count
+
+    def solve_part2(self, data: list[str]) -> int:
+        count = 0
+        current = 50
+        for value in data:
+            if value[0] == 'L':
+                value = - int(value[1:])
+            else:
+                value = int(value[1:])
+            
+            new_current = current + value
+            div = abs(new_current) // 100
+            nb_rotation = div
+            if new_current < 0:
+                if current != 0:
+                    nb_rotation += 1
+                new_current += 100 * nb_rotation
+            elif new_current > 0:
+                new_current -= 100 * nb_rotation
+            else:
+                nb_rotation = 1
+            new_current %= 100
+
+            print(f"{current} + {value} = {new_current} (+{nb_rotation})")
+            current = new_current
+            count += nb_rotation
+
+        return count
+
+    def test_custom_2_1(self):
+        return self.solve_part2(["R48", "L498"]) == 5
+    
+    def test_custom_2_2(self):
+        assert self.solve_part2(["R1000"]) == 10
+
+if __name__ == "__main__":
+    day = Day01(1, "L68\nL30\nR48\nL5\nR60\nL55\nL1\nL99\nR14\nL82", excepted_part1 = 3, excepted_part2=6)
+    day.run_tests()
+    day.run()
diff --git a/python/utils/day.py b/python/utils/day.py
new file mode 100644
index 0000000..ad65472
--- /dev/null
+++ b/python/utils/day.py
@@ -0,0 +1,49 @@
+from abc import ABC, abstractmethod
+from dataclasses import dataclass
+from .load import get_input
+import logging
+logging.basicConfig(level=logging.DEBUG)
+
+@dataclass
+class DayBase(ABC):
+    day_number: int
+    test_data: str
+    excepted_part1: str
+    excepted_part2: str
+
+    def __post_init__(self):
+        if self.__class__ == DayBase:
+            raise TypeError("Cannot instantiate abstract class.")
+
+    @abstractmethod
+    def parse_data(self, input: str):
+        pass
+
+    def test_part1(self):
+        data = self.parse_data(self.test_data)
+        assert self.solve_part1(data) == self.excepted_part1
+
+    def test_part2(self):
+        data = self.parse_data(self.test_data)
+        assert self.solve_part2(data) == self.excepted_part2
+
+    @abstractmethod
+    def solve_part1(self, data):
+        pass
+
+    @abstractmethod
+    def solve_part2(self, data):
+        pass
+
+    def run_tests(self):
+        classes = list(self.__class__.__bases__) + [self.__class__]
+        for klass in classes:
+            for element in klass.__dict__:
+                if callable(getattr(self, element)) and element.startswith("test_"):
+                    logging.debug("Found test: %s", element)
+                    getattr(self, element)()
+
+    def run(self):
+        data = self.parse_data(get_input(self.day_number))
+        logging.info("Part 01 (day %s): %s", self.day_number, self.solve_part1(data))
+        logging.info("Part 02 (day %s): %s", self.day_number, self.solve_part2(data))
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