diff --git a/sum.cpp b/sum.cpp
new file mode 100644
index 00000000000..3642f0e6659
--- /dev/null
+++ b/sum.cpp
@@ -0,0 +1,16 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    int n, sum = 0;
+
+    cout << "Enter a positive integer: ";
+    cin >> n;
+
+    for (int i = 1; i <= n; ++i) {
+        sum += i;
+    }
+
+    cout << "Sum = " << sum;
+    return 0;
+}