import sysdef hanoi(n, a, b, c):    if n == 1:        print('%c --> %c' % (a, c))    else:        hanoi(n-1, a, c, b)        print('%c --> %c' % (a, c))        hanoi(n-1, b, a, c)if __name__ == "__main__":    n = int(sys.stdin.readline())    hanoi(n, 'A', 'B', 'C')

using System.Diagnostics;namespace Hanoi{    class Program    {        static void Main(string[] args)        {            Process process = new Process            {                StartInfo = new ProcessStartInfo                {                    FileName = "python",                    Arguments = "hanoi.py",                    UseShellExecute = false                }            };            process.Start();            process.WaitForExit();        }    }}