public class Program

{

    public static void Main()

    {

        //.NET Fiddle doesn't support parameters so I simulate them this way

        P.Main(new string[]{ "DDoouubbllee  ssppeeaakk!!" });

    }

}

public class P

{public static void Main(string[]a){bool d=true;if(a[0].Length%(double)2>0)d=false;else for(int i=0;i<a[0].Length;i+=2){d=a[0][i]==a[0][i+1]?d:false;}System.Console.Write(d);}}