The second installment of the experiment is about cyclomatic complexity.

Readability2.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CodeReadability
{
    public class CyclomaticComplexity
    {
        public int First(int number)
        {
            if (number % 12 == 0)
                return 12;
            return number;
        }

        public int Second(int number)
        {
            if(number > 15 || number < -234)
            {
                return 0;
            }
            else if(number > 10)
            {
                if (number == 8)
                    return 22;
                return 4;
            }
            return 9;
        }

        public int Third(int number)
        {
            if (number == 8)
                return 93;
            if(number > 0)
            {
                if(number % 2 == 0)
                {
                    return 2;
                }
                else if(number % 3 == 0)
                {
                    return 26;
                }
                else if(number % 5 == 0)
                {
                    return 5;
                }
                else
                {
                    if (number == 49)
                        return 18;

                    return 10;
                }
            }
            else
            {
                if(number > -15)
                {
                    if (number > -100)
                        return number;
                    else if (number > -50)
                        return -24;
                }
                return 33;
            }
        }
    }
}