3 files changed, 5 insertions, 3 deletions
diff --git a/day1/index.ts b/day1/index.ts
index 638acb9..2e202ad 100644
--- a/day1/index.ts
+++ b/day1/index.ts
@@ -1,7 +1,7 @@
 import { ExerciseModuleFunc } from "../types";
 
 const day1: ExerciseModuleFunc = (input: string) => {
-  console.log(input);
+  return input;
 }
 
 export default day1;
diff --git a/index.ts b/index.ts
index 37218ee..6574f2d 100644
--- a/index.ts
+++ b/index.ts
@@ -11,7 +11,9 @@ const inputText = inputBuffer.toString();
 
 import(modulePath).then(m => {
   const defaultFunc = m.default as ExerciseModuleFunc;
-  defaultFunc(inputText);
+  const result = defaultFunc(inputText);
+  console.log("=== RESULT ===");
+  console.log(result);
 }).catch(err => {
   console.error(err);
 });
diff --git a/types.d.ts b/types.d.ts
index 6739537..bc99a44 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -1 +1 @@
-export type ExerciseModuleFunc = (input: string) => void;
+export type ExerciseModuleFunc = (input: string) => string;