diff --git a/03/03.py b/03/03.py
new file mode 100644
index 0000000..d76b8b7
--- /dev/null
+++ b/03/03.py
@@ -0,0 +1,38 @@
+def read_file():
+	with open("input.txt","r") as f:
+		return f.read().split('\n')
+
+def part1(tree_map):
+	width = len(tree_map[0])
+	trees_encountered = 0
+	for i, line in enumerate(tree_map):
+		if tree_map[i][3*i % width] == "#":
+			trees_encountered += 1
+	return trees_encountered
+
+def part2(tree_map, right, down):
+	height = len(tree_map)
+	width = len(tree_map[0])
+	trees_encountered = 0
+	i = 0
+	j = 0
+	while i < height:
+		if tree_map[i][(j % width)] == "#":
+			trees_encountered += 1
+		i += down
+		j += right
+	return trees_encountered
+
+def main():
+	tree_map = read_file()
+	print(f'Part 1: {part1(tree_map)}')
+	a = part2(tree_map, 1, 1)
+	b = part2(tree_map, 3, 1)
+	assert b == part1(tree_map)
+	c = part2(tree_map, 5, 1)
+	d = part2(tree_map, 7, 1)
+	e = part2(tree_map, 1, 2)
+	print(f'Part 2: {a*b*c*d*e}')
+
+if __name__ == "__main__":
+	main()
\ No newline at end of file
diff --git a/03/input.txt b/03/input.txt
new file mode 100644
index 0000000..90141e9
--- /dev/null
+++ b/03/input.txt
@@ -0,0 +1,323 @@
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\ No newline at end of file