compra de restaurante, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace consoleApplication1
{
    public class Program
    {
        public static void Main(string[] args)
       {
       
          byte canb , canh camb;
     
          double apagar;
          string linea;
          const double preciob = 0.8 ;
          const double precioh = 2 ;
          const double preciop = 1.2 ;
          console.write ("cantidad de hamburguesa":); linea= console.readline     ();
          canh= byte.parse  (linea);
          console.write  ("cantidad de papas :"); linea= console.readline ();
          canp=byte.parse (linea);
          console.write ("cantidad de bebida:"); linea =console.readline ();
          canb=byte.parse (linea);
          console.writeline();
          apagado = (canh* precioh) +(canp* preciop) + (canb* preciob);
          
          console.writeline ("valor a pagar" + apagar);consol.writeline ("pulse una tecla:"); console.readline ();
        
        }
    }
  }

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