add prog 4

1 files changed, 5 insertions, 0 deletions

diff --git a/4/input b/4/input
new file mode 100644
index 0000000..7f0cc0b
--- /dev/null
+++ b/4/input
@@ -0,0 +1,5 @@
+int main() {
+    int n;
+    printf("hello world");
+    scanf("%d", &n);
+}