diff --git a/.gitignore b/.gitignore
index 06c798b..2211df6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-input.txt
+*.txt
diff --git a/01/parser.go b/day01/common/parser.go
similarity index 75%
rename from 01/parser.go
rename to day01/common/parser.go
index c9ab6f4..1128fc5 100644
--- a/01/parser.go
+++ b/day01/common/parser.go
@@ -1,4 +1,4 @@
-package main
+package common
 
 import (
   "bufio"
@@ -9,11 +9,11 @@ type Inventory struct {
   rations []int
 }
 
-func (inventory *Inventory) addRation(ration int) {
+func (inventory *Inventory) AddRation(ration int) {
   inventory.rations = append(inventory.rations, ration)
 }
 
-func (inventory Inventory) getTotal() int {
+func (inventory Inventory) GetTotal() int {
   total := 0
   for _, ration := range inventory.rations {
     total += ration
@@ -21,7 +21,7 @@ func (inventory Inventory) getTotal() int {
   return total
 }
 
-func parse(scanner bufio.Scanner) []Inventory {
+func Parse(scanner bufio.Scanner) []Inventory {
   inventories := []Inventory{}
   currentInventory := Inventory{}
 
@@ -32,7 +32,7 @@ func parse(scanner bufio.Scanner) []Inventory {
       currentInventory = Inventory{[]int{}}
     } else {
       ration, _ := strconv.Atoi(line)
-      currentInventory.addRation(ration)
+      currentInventory.AddRation(ration)
     }
   }
   inventories = append(inventories, currentInventory)
diff --git a/01/1.go b/day01/ex1/main.go
similarity index 68%
rename from 01/1.go
rename to day01/ex1/main.go
index dddc457..4926acd 100644
--- a/01/1.go
+++ b/day01/ex1/main.go
@@ -4,14 +4,15 @@ import (
   "bufio"
   "fmt"
   "os"
+  "aoc2022/day01/common"
 )
 
 func main() {
-  inventories := parse(*bufio.NewScanner(os.Stdin))
+  inventories := common.Parse(*bufio.NewScanner(os.Stdin))
 
   largestInventoryTotal := 0
   for _, inventory := range inventories {
-    currentTotal := inventory.getTotal()
+    currentTotal := inventory.GetTotal()
     if currentTotal > largestInventoryTotal {
       largestInventoryTotal = currentTotal
     }
diff --git a/01/2.go b/day01/ex2/main.go
similarity index 82%
rename from 01/2.go
rename to day01/ex2/main.go
index ffb6131..c7a2d4d 100644
--- a/01/2.go
+++ b/day01/ex2/main.go
@@ -4,16 +4,17 @@ import (
   "bufio"
   "fmt"
   "os"
+  "aoc2022/day01/common"
 )
 
 func main() {
-  inventories := parse(*bufio.NewScanner(os.Stdin))
+  inventories := common.Parse(*bufio.NewScanner(os.Stdin))
 
   largestInventoriesTotal := []int{0, 0, 0}
   largestInventoriesIndex := []int{-1, -1, -1}
   for i := 0; i < 3; i++ {
     for index, inventory := range inventories {
-      currentTotal := inventory.getTotal()
+      currentTotal := inventory.GetTotal()
       if currentTotal > largestInventoriesTotal[i] && index != largestInventoriesIndex[0] && index != largestInventoriesIndex[1] {
         largestInventoriesTotal[i] = currentTotal
         largestInventoriesIndex[i] = index
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..670069e
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module aoc2022
+
+go 1.19