diff --git a/build.gradle b/build.gradle
index a536f11..9b32bef 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,6 @@
 plugins {
     id 'java'
+    id "io.freefair.lombok" version "6.6"
 }
 
 group = 'lol.hub.aoc'
diff --git a/src/main/java/lol/hub/aoc/util/StringExtensions.java b/src/main/java/lol/hub/aoc/util/StringExtensions.java
new file mode 100644
index 0000000..e3450bb
--- /dev/null
+++ b/src/main/java/lol/hub/aoc/util/StringExtensions.java
@@ -0,0 +1,11 @@
+package lol.hub.aoc.util;
+
+public class StringExtensions {
+    public static String nth(String input, int start, int distance) {
+        StringBuilder sb = new StringBuilder();
+        for (int i = start; i < input.length(); i = i + distance) {
+            sb.append(input.charAt(i));
+        }
+        return sb.toString();
+    }
+}