diff --git a/a1/program.c b/a1/program.c
index 2bbf4e7..62e05d1 100644
--- a/a1/program.c
+++ b/a1/program.c
@@ -3,17 +3,19 @@
 
 int main() {
     int ch;
-    int line_count = 0; // 
+    int line_count = 0;
 
-    while ((ch = getchar()) != EOF) {
+    while ((ch = getchar()) != EOF) { 
         if (islower(ch)) {  
-            putchar(toupper(ch));  
+            putchar(toupper(ch)); 
         } else if (isupper(ch)) {
             putchar(tolower(ch));  
         } else if (ch == '\n') {
+            putchar(ch); 
+            line_count++; 
+        } else if (ch == '\t') {
             putchar(ch);  
-            line_count++;
-        } else if (ch >= 32 && ch <= 126) {
+        } else if (ch >= 32 && ch <= 126) { 
             putchar(ch);
         }
     }