using System;

public class Program

{

    public static void Main()

    {

        string s;

        int i;

        bool b = false;

        s = "abc";

        if(!int.TryParse(s,out i))

            i = -1;

        Console.Write(s);Console.Write("*");

        Console.Write(i);Console.Write("*");

        Console.Write(b);Console.WriteLine();

​

        s = "123";

        if(!int.TryParse(s,out i))

            i = -1;

        Console.Write(s);Console.Write("*");

        Console.Write(i);Console.Write("*");

        Console.Write(b);Console.WriteLine();

​

        s = "123.2";

        if(!int.TryParse(s,out i))

            i = -1;

        Console.Write(s);Console.Write("*");

        Console.Write(i);Console.Write("*");

        Console.Write(b);Console.WriteLine();

​

​

    }

}