using System; using System.Linq; using System.Collections.Generic; using System.IO; class MyClass { public static void Solve() { var N = int.Parse(Console.ReadLine()); Console.WriteLine(N * 10); } public static void Main() { var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }; Console.SetOut(sw); Solve(); Console.Out.Flush(); } }