diff --git a/fact.c b/fact.c
index 1aef283..3d63352 100644
--- a/fact.c
+++ b/fact.c
@@ -1,18 +1,7 @@
-//#define _CRT_SECURE_NO_WARNINGS
-//#include <stdio.h>
-//#include <stdlib.h>
-//
-//long fact2(int n) {
-//    if (n == 0) {
-//        return 1;
-//    }
-//    long res = fact2(n - 1) * n;
-//    return res;
-//}
-//
-//void main() {
-//    int n = 4;
-//    long f = fact2(n);
-//
-//    printf("%d! = %ld", n, f);
-//}
\ No newline at end of file
+#include <stdio.h>
+
+int main(void)
+{
+	printf("Hello world!");
+	return 0;
+}
\ No newline at end of file