diff --git a/01/input.txt b/01/input.txt
new file mode 100644
index 0000000..1278c07
--- /dev/null
+++ b/01/input.txt
@@ -0,0 +1,2000 @@
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diff --git a/01/solution.py b/01/solution.py
new file mode 100644
index 0000000..e4de066
--- /dev/null
+++ b/01/solution.py
@@ -0,0 +1,24 @@
+with open('input.txt') as f:
+    numbers = f.readlines()
+
+increases = 0
+first = int(numbers[0])
+for i in numbers[1:]:
+    second = int(i)
+    if second > first:
+        increases += 1
+    first = second
+
+print(increases)
+
+increases = 0
+numbers = [int(i) for i in numbers]
+i = 0
+first = sum(numbers[i:i+3])
+for i in range(len(numbers) - 3):
+    second = sum(numbers[i+1:i+4])
+    if second > first:
+        increases += 1
+    first = second
+
+print(increases)