diff --git a/day9.py b/day9.py
new file mode 100644
index 0000000..c3cf051
--- /dev/null
+++ b/day9.py
@@ -0,0 +1,40 @@
+day = "day9"
+file = f"inputs/{day}.txt"
+
+
+
+def part_one(file):
+    result = 0
+    input = open(file, "r")
+    input = input.readlines()
+    numbers = []
+    for i in input:
+        numbers.append(int(i))
+
+
+        for number in range(0,len(numbers)):
+            for nextnumber in range(1,len(numbers)):
+                if numbers[number] + numbers[nextnumber] in numbers:
+                    break;
+                else:
+                        rvnumber = numbers[number] + numbers[nextnumber]
+                        print(rvnumber)
+
+
+
+    print(f"Part 1: {result}")
+
+
+
+
+def part_two(file):
+    result = 0
+    input = open(file, "r")
+    input = input.readlines()
+
+
+
+    print(f"Part 2: {result}")
+
+part_one(file)
+part_two(file)
\ No newline at end of file
diff --git a/inputs/day9.txt b/inputs/day9.txt
index e69de29..cda4246 100644
--- a/inputs/day9.txt
+++ b/inputs/day9.txt
@@ -0,0 +1,20 @@
+35
+20
+15
+25
+47
+40
+62
+55
+65
+95
+102
+117
+150
+182
+127
+219
+299
+277
+309
+576
\ No newline at end of file