Rabbit MQ publish and subscribe basic

SBRabbit.cs

using System;
using System.Text;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;

namespace SBRabbit{
    class Program{
        static void Usage(){
            Console.WriteLine("SBRabbit <publish|susbscribe>");
        }
        public static void Main(string[] args){
            if(args.Length!=1){
                Usage();
            }
            else{
                if(args[0]=="susbscribe"){
                    Subscribe();
                }
                else if(args[0]=="publish"){
                    Console.Write("Enter Message:");
                    string message = Console.ReadLine();
                    Publish(message);
                }
            }
        }

        static void Subscribe(){
            var factory = new ConnectionFactory(){HostName = "localhost"};
            using(var connection = factory.CreateConnection()){
                using(var channel=connection.CreateModel()){
                     channel.QueueDeclare(queue: "hello",
                                 durable: false,
                                 exclusive: false,
                                 autoDelete: false,
                                 arguments: null);
                    var consumer = new EventingBasicConsumer(channel);
                    consumer.Received += (model, ea) =>
                    {
                        var body = ea.Body;
                        var message = Encoding.UTF8.GetString(body);
                        Console.WriteLine(" [x] Received {0}", message);
                        Console.WriteLine(" [x] Done");
                    };
                    channel.BasicConsume(queue: "hello", autoAck: true, consumer: consumer);
                    //Pause Execution Here
                    Console.ReadLine();
                }
            }
        }

        static void Publish(string message){
            var factory = new ConnectionFactory(){HostName = "localhost"};
            using (var connection = factory.CreateConnection()){
                using(var channel = connection.CreateModel()){
                    channel.QueueDeclare(queue: "hello",
                                 durable: false,
                                 exclusive: false,
                                 autoDelete: false,
                                 arguments: null);

                    var body = Encoding.UTF8.GetBytes(message);

                    channel.BasicPublish(exchange: "",
                                        routingKey: "hello",
                                        basicProperties: null,
                                        body: body);
                    Console.WriteLine(" [x] Sent {0}", message);
                }
            }
        }
    }
}