diff --git a/data/example/2025/01.txt b/data/example/2025/01.txt
new file mode 100644
index 000000000..53287c7
--- /dev/null
+++ b/data/example/2025/01.txt
@@ -0,0 +1,10 @@
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82
diff --git a/src/solution/year_2025/__init__.py b/src/solution/year_2025/__init__.py
new file mode 100644
index 000000000..e69de29
diff --git a/src/solution/year_2025/day_01.py b/src/solution/year_2025/day_01.py
new file mode 100644
index 000000000..c80e93f
--- /dev/null
+++ b/src/solution/year_2025/day_01.py
@@ -0,0 +1,26 @@
+from typing import Any
+
+
+def part_1_2(input_data) -> Any:
+    d = 50
+
+    c1 = 0
+    c2 = 0
+
+    for line in input_data.splitlines():
+        dir = 1 if line[0] == "L" else -1
+        val = int(line[1:])
+
+        for _ in range(val):
+            d = (d + dir) % 100
+            if d == 0:
+                c2 += 1
+
+        if d == 0:
+            c1 += 1
+
+    return c1, c2
+
+
+def test_part_1_2(example_data) -> None:
+    assert part_1_2(example_data) == (3, 6)