diff --git a/hello_world b/hello_world
index a26bba5..41d9196 100644
Binary files a/hello_world and b/hello_world differ
diff --git a/hello_world.c b/hello_world.c
index 8321e25..67da847 100644
--- a/hello_world.c
+++ b/hello_world.c
@@ -1,6 +1,10 @@
 #include <stdio.h>
 
-int main() {
-    printf("Hello, World!\n");
+int main(int argc, char* argv[]) {
+    if (argv[1] == NULL)
+    {
+        argv[1] = "World";
+    }
+    printf("Hello, %s!\n", argv[1]);
     return 0;
-}
\ No newline at end of file
+}
diff --git a/hello_world_scanf b/hello_world_scanf
new file mode 100644
index 0000000..744d4f1
Binary files /dev/null and b/hello_world_scanf differ
diff --git a/hello_world_scanf.c b/hello_world_scanf.c
new file mode 100644
index 0000000..224f9c1
--- /dev/null
+++ b/hello_world_scanf.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, char* argv[]) {
+    char name[64];
+    printf("Please enter your name: ");
+    scanf("%s", name);
+    printf("Hello, %s!\n", name);
+    return 0;
+}