From 431c198138f25df9a468781273df1d0cf82c5546 Mon Sep 17 00:00:00 2001
From: ari melody <ari@arimelody.me>
Date: Mon, 12 Feb 2024 17:43:19 +0000
Subject: [PATCH] shift lowercase input chars to uppercase

---
 main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/main.c b/main.c
index 63568ee..f5e8101 100644
--- a/main.c
+++ b/main.c
@@ -63,6 +63,7 @@ int main() {
         while (1) {
                 unsigned char input = getchar();
                 if (input == '\n') break;
+                if (input >= 'a' && input <= 'z') input -= 32;
                 last_char = input;
 
                 if (input < '0' || input > '9') continue;