using System;

public class Program

{

    public static void Main()

    {

        var temp1 = "6.";

        int value = 0;

        if (double.TryParse(temp1, out var doubleValue))

        {

            value = (int)doubleValue;

        }

        else

        {

            throw new FormatException($"Could not parse {temp1}");

        }

        Console.WriteLine(value);

    }

}