diff --git a/Header_files/.app.i.swp b/Header_files/.app.i.swp
new file mode 100644
index 0000000..e548ad0
Binary files /dev/null and b/Header_files/.app.i.swp differ
diff --git a/Header_files/app.c b/Header_files/app.c
index 4fb05c0..c52003f 100644
--- a/Header_files/app.c
+++ b/Header_files/app.c
@@ -6,7 +6,7 @@
  *    Description:  
  *
  *        Version:  1.0
- *        Created:  02/02/24 10:43:11 PM IST
+ *        Created:  03/02/24 10:51:41 AM IST
  *       Revision:  none
  *       Compiler:  gcc
  *
@@ -16,9 +16,9 @@
  * =====================================================================================
  */
 
+#include "A.h"
 #include "B.h"
-#define square(x) ( x*x )
-
+#define square(x) (x*x)
 
 int foo(int b);
 int foo(int b){
@@ -27,5 +27,6 @@ int foo(int b){
 
 int main(){
     int a = square(15);
+
     return 0;
 }
diff --git a/Header_files/app.i b/Header_files/app.i
index a4a8881..39221f7 100644
--- a/Header_files/app.i
+++ b/Header_files/app.i
@@ -5,16 +5,19 @@
 # 0 "<command-line>" 2
 # 1 "app.c"
 # 19 "app.c"
-# 1 "B.h" 1
-# 19 "B.h"
 # 1 "A.h" 1
-# 21 "A.h"
-int sum(int a,int b);
-# 20 "B.h" 2
-
-int multiply ( int a , int b );
+# 22 "A.h"
+int sum(int a,int b)
 # 20 "app.c" 2
+# 1 "B.h" 1
+# 21 "B.h"
+# 1 "A.h" 1
+# 22 "A.h"
+int sum(int a,int b)
+# 22 "B.h" 2
 
+int multiply(int a,int b)
+# 21 "app.c" 2
 
 
 int foo(int b);
@@ -23,6 +26,7 @@ int foo(int b){
 }
 
 int main(){
-    int a = ( 15*15 );
+    int a = (15*15);
+
     return 0;
 }
diff --git a/Header_files/app1.i b/Header_files/app1.i
new file mode 100644
index 0000000..34e0bf8
--- /dev/null
+++ b/Header_files/app1.i
@@ -0,0 +1,27 @@
+# 0 "app.c"
+# 0 "<built-in>"
+# 0 "<command-line>"
+# 1 "/usr/include/stdc-predef.h" 1 3 4
+# 0 "<command-line>" 2
+# 1 "app.c"
+# 19 "app.c"
+# 1 "A.h" 1
+# 22 "A.h"
+int sum(int a,int b)
+# 20 "app.c" 2
+# 1 "B.h" 1
+# 23 "B.h"
+int multiply(int a,int b)
+# 21 "app.c" 2
+
+
+int foo(int b);
+int foo(int b){
+
+}
+
+int main(){
+    int a = (15*15);
+
+    return 0;
+}