Create a Role to User in SharePoint using CSOM

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SharePoint.Client;
namespace GowthamSamples
{
    class Program
    {
        static void Main(string[] args)
      {
            // ClientContext - Get the context for the SharePoint Site
            ClientContext clientContext = new ClientContext("http://gauti.sharepoint.com/sites/sp1/");
            BasePermissions Roleperm = new BasePermissions();
            Roleperm.Set(PermissionKind.CreateAlerts);
            Roleperm.Set(PermissionKind.ManageAlerts);
            RoleDefinitionCreationInformation RolecreationInfo = new RoleDefinitionCreationInformation();
            RolecreationInfo.BasePermissions = Roleperm;
            RolecreationInfo.Description = "create a Role for this user";
            RolecreationInfo.Name = "Manager Role";
            RolecreationInfo.Order = 0;
            RoleDefinition Roledef = context.Web.RoleDefinitions.Add(RolecreationInfo);
            context.ExecuteQuery();
        }
    }
}