diff --git a/hello.c b/hello.c
index 736c8bc..57d7936 100644
--- a/hello.c
+++ b/hello.c
@@ -13,5 +13,7 @@ int main() {
     int result = f(3, 5); // 通过函数指针调用加法函数
     printf("3 + 5 = %d\n", result); // 输出：3 + 5 = 8
     result = f(2,8);
+
+    result = f(9,7);
     return 0;
 }
\ No newline at end of file