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

namespace WinFormsApp1
{
    internal class A
    {
        public delegate void GetLogString(string operationName, StringBuilder logContainer);
        
        private decimal a = 3;
        private decimal b = 5;

        public decimal C1 => a++;
        public decimal C2 => b++;

        public A() { }

        public decimal D1()
        {
            return C1 * C1;
        }

        public decimal D2()
        {
            return C2 * C2;
        }

        public void AddALog(string operationName, StringBuilder logContainer)
        {
            string log = $"after {operationName} {nameof(a)}={a}\t";
            logContainer.Append(log);
        }

        public void AddBLogString(string operationName, StringBuilder logContainer)
        {
            string log = $"after {operationName} {nameof(b)}={b}\t";
            logContainer.Append(log);
        }
    }
}