diff --git a/stuff/01-11-2021/es2.c b/stuff/01-11-2021/es2.c
new file mode 100644
index 0000000..085650b
--- /dev/null
+++ b/stuff/01-11-2021/es2.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int main(int ld)
+{
+	int sum = 0;
+
+	printf("100");
+	for (int i = 99; i != -1; i--) {
+		printf("\n%d", i);
+		sum += i;
+		if ((i % 10) == 0)
+			printf("\nFINE DECINA\n");
+	}
+
+	printf("\nSomma: %d\n", sum + 100);
+}