diff --git a/README.md b/README.md
index 5f8abaa..25cb4af 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
 # Week1-Hello
 # Week1-Hello
+my week 1 assignment hello.c
\ No newline at end of file
diff --git a/hello.c b/hello.c
new file mode 100644
index 0000000..f2439af
--- /dev/null
+++ b/hello.c
@@ -0,0 +1,10 @@
+//the library of input and output function
+#include <stdio.h>
+#include<cs50.h>
+
+int main(void)
+{
+    
+    string name = get_string("what is your name?\n");
+    printf("hello, %s", name);
+}