diff --git a/2024/task9.cpp b/2024/task9.cpp
new file mode 100644
index 0000000..e05aa4b
--- /dev/null
+++ b/2024/task9.cpp
@@ -0,0 +1,21 @@
+#include <iostream>
+using namespace std;
+
+// "256" => "625-256=369"
+int main ()
+{
+	int a,b;
+
+	cin >> a, b;
+
+	int d1, d2, d3;
+	d1 = a % 10;
+	d2 = a / 10 % 10;
+	d3 = a / 100 % 10;
+	
+	b = d1 * 100 + d3 * 10 + d2;
+
+	cout << b << '-' << a << '=' << b-a;
+
+	return 0;
+}