From 77d48e790a14d3b6531dea8515d9cbfe193bbf5c Mon Sep 17 00:00:00 2001
From: fiatcode <fiatcode@posteo.com>
Date: Wed, 18 Feb 2026 12:56:40 +0700
Subject: [PATCH] GREEN: Fix single number parsing bug

- Removed +1 off-by-one error from single number parsing
- Now correctly returns the parsed number
- Tests pass: '5' returns 5, '42' returns 42
---
 lib/string_calculator.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/string_calculator.dart b/lib/string_calculator.dart
index bb7e714..763c5b6 100644
--- a/lib/string_calculator.dart
+++ b/lib/string_calculator.dart
@@ -17,7 +17,7 @@ class StringCalculator {
 
     // Bug 2: Single number parsing
     if (!numbers.contains(',') && !numbers.contains('\n') && !numbers.startsWith('//')) {
-      return int.parse(numbers) + 1; // Off by one error
+      return int.parse(numbers); // Fixed: Removed off-by-one error
     }
 
     String delimiter = ',';