diff --git a/14xxx/14065.cpp b/14xxx/14065.cpp
new file mode 100644
index 00000000..7891e9a9
--- /dev/null
+++ b/14xxx/14065.cpp
@@ -0,0 +1,17 @@
+#include <iomanip>
+#include <iostream>
+using namespace std;
+
+void solve(void) {
+  double x; cin >> x;
+
+  cout << fixed << setprecision(7) << 100.00 / (1.609344 / 3.785411784 * x);
+}
+
+int main(void) {
+  ios::sync_with_stdio(false);
+  cin.tie(nullptr); cout.tie(nullptr);
+
+  solve();
+  return 0;
+}
\ No newline at end of file