diff --git a/Armstrong,app b/Armstrong,app
new file mode 100644
index 0000000..11e5399
--- /dev/null
+++ b/Armstrong,app
@@ -0,0 +1,35 @@
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+int main() {
+    int num, originalNum, remainder, result = 0;
+    cout << "Enter a number: ";
+    cin >> num;
+
+    originalNum = num;
+
+    // Find number of digits
+    int n = 0;
+    int temp = num;
+    while (temp != 0) {
+        temp /= 10;
+        ++n;
+    }
+
+    // Compute sum of digits raised to n
+    temp = num;
+    while (temp != 0) {
+        remainder = temp % 10;
+        result += pow(remainder, n);
+        temp /= 10;
+    }
+
+    // Check Armstrong condition
+    if (result == originalNum)
+        cout << originalNum << " is an Armstrong number." << endl;
+    else
+        cout << originalNum << " is not an Armstrong number." << endl;
+
+    return 0;
+}