diff --git a/2025/day01/part1.py b/2025/day01/part1.py
new file mode 100644
index 0000000..40a8bb1
--- /dev/null
+++ b/2025/day01/part1.py
@@ -0,0 +1,17 @@
+text: str
+
+with open("input.txt") as f:
+    text = f.read()
+
+total: int = 0
+nb: int = 50
+
+text = text.replace("L", "-").replace("R", "+")
+
+
+for line in text.splitlines():
+    nb = (nb + int(line)) % 100
+    if nb == 0:
+        total += 1
+        
+print(total)
\ No newline at end of file