diff --git a/src/cli/commands/day005.rs b/src/cli/commands/day005.rs
index 07647df..16794e1 100644
--- a/src/cli/commands/day005.rs
+++ b/src/cli/commands/day005.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day005(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day006.rs b/src/cli/commands/day006.rs
index 2a82c3d..d21cb9a 100644
--- a/src/cli/commands/day006.rs
+++ b/src/cli/commands/day006.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day006(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day007.rs b/src/cli/commands/day007.rs
index 7523079..d3a26ec 100644
--- a/src/cli/commands/day007.rs
+++ b/src/cli/commands/day007.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day007(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day008.rs b/src/cli/commands/day008.rs
index 690f129..108524c 100644
--- a/src/cli/commands/day008.rs
+++ b/src/cli/commands/day008.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day008(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day009.rs b/src/cli/commands/day009.rs
index d892f90..ef19ffe 100644
--- a/src/cli/commands/day009.rs
+++ b/src/cli/commands/day009.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day009(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day010.rs b/src/cli/commands/day010.rs
index 9de6222..074f7c8 100644
--- a/src/cli/commands/day010.rs
+++ b/src/cli/commands/day010.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day010(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day011.rs b/src/cli/commands/day011.rs
index c4d87ce..5894a9b 100644
--- a/src/cli/commands/day011.rs
+++ b/src/cli/commands/day011.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day011(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day012.rs b/src/cli/commands/day012.rs
index b0881d1..8f6afbf 100644
--- a/src/cli/commands/day012.rs
+++ b/src/cli/commands/day012.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day012(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day013.rs b/src/cli/commands/day013.rs
index 5d6928e..6ed5fa5 100644
--- a/src/cli/commands/day013.rs
+++ b/src/cli/commands/day013.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day013(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day014.rs b/src/cli/commands/day014.rs
index 91537f6..e0079f0 100644
--- a/src/cli/commands/day014.rs
+++ b/src/cli/commands/day014.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day014(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day015.rs b/src/cli/commands/day015.rs
index a5f85aa..62c35a9 100644
--- a/src/cli/commands/day015.rs
+++ b/src/cli/commands/day015.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day015(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day016.rs b/src/cli/commands/day016.rs
index a81868d..31ff19f 100644
--- a/src/cli/commands/day016.rs
+++ b/src/cli/commands/day016.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day016(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day017.rs b/src/cli/commands/day017.rs
index 5324bd9..3462d7c 100644
--- a/src/cli/commands/day017.rs
+++ b/src/cli/commands/day017.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day017(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day018.rs b/src/cli/commands/day018.rs
index c0a4792..0320b66 100644
--- a/src/cli/commands/day018.rs
+++ b/src/cli/commands/day018.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day018(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day019.rs b/src/cli/commands/day019.rs
index 7384c26..c5d2db4 100644
--- a/src/cli/commands/day019.rs
+++ b/src/cli/commands/day019.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day019(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day020.rs b/src/cli/commands/day020.rs
index a8d2e8c..f2a491e 100644
--- a/src/cli/commands/day020.rs
+++ b/src/cli/commands/day020.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day020(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day021.rs b/src/cli/commands/day021.rs
index a5db81a..1f7d36c 100644
--- a/src/cli/commands/day021.rs
+++ b/src/cli/commands/day021.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day021(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day022.rs b/src/cli/commands/day022.rs
index b8380f9..ae04709 100644
--- a/src/cli/commands/day022.rs
+++ b/src/cli/commands/day022.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day022(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day023.rs b/src/cli/commands/day023.rs
index e02ddb7..ebea5a4 100644
--- a/src/cli/commands/day023.rs
+++ b/src/cli/commands/day023.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day023(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day024.rs b/src/cli/commands/day024.rs
index 4df9e7a..46cb853 100644
--- a/src/cli/commands/day024.rs
+++ b/src/cli/commands/day024.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day024(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
 
diff --git a/src/cli/commands/day025.rs b/src/cli/commands/day025.rs
index 709bb8f..0537f88 100644
--- a/src/cli/commands/day025.rs
+++ b/src/cli/commands/day025.rs
@@ -3,6 +3,10 @@ use std::fs::File;
 use std::io::{BufReader,Lines};
 use crate::util::read_lines;
 
+fn part1(lines: Lines<BufReader<File>>) {
+
+}
+
 pub fn subcmd_day025(file: &Option<PathBuf>, alt: &bool) {
     if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {