using System;

public class Program

{

    public static void Main()

    {

    int n1,n2,n3,num,min;

        num=int.Parse(Console.ReadLine());

        n1=(num/100)*100;

        n2=(num%100/10)*10;

        n3=num%10;

        min=Math.Min(n1,Math.Min(n2,n3));

        Console.WriteLine("the min degget is = {0}",min);

    }

}