국산곰탱이

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using System;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            int a = 12345;
            float b = 12.345f;
            double c = 54.321;
            string d = "54321";
            
            Console.WriteLine("string d - > int = {0}", int.Parse(d));
            Console.WriteLine("int a - > string = {0}", a.ToString());

            Console.WriteLine("float b - > int = {0}", (int)c);
            Console.WriteLine("double c - > int = {0}", (int)b);

        }
    }
}