При нажати левой кнопки мыши в месте нажатия отображается зеленый кружок, а при нажатии правой кнопки мыши красный квад

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
 
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Pen pen = new Pen(Brushes.Green);
                Graphics krug = this.CreateGraphics();
                krug.DrawEllipse(pen, e.X, e.Y, 50, 50);
                
 
            }
 
            if (e.Button == MouseButtons.Right)
            {
                Pen pen = new Pen(Brushes.Red);
                Graphics krug = this.CreateGraphics();
                krug.DrawRectangle(pen, e.X, e.Y, 50, 50);
            }
 
        }
    }
}

private void Form1_MouseClick(object sender, MouseEventArgs e)
{
   Graphics krug = this.CreateGraphics();
   krug.Clear(BackColor);
   if (e.Button == MouseButtons.Left)
   {
       Pen pen = new Pen(Brushes.Green);
       krug.DrawEllipse(pen, e.X, e.Y, 50, 50);
   }
   if (e.Button == MouseButtons.Right)
   {
       Pen pen = new Pen(Brushes.Red);
       krug.DrawRectangle(pen, e.X, e.Y, 50, 50);
   }
}

private void Form1_MouseClick(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Left)
    {
        panel1.Visible = true;
        panel1.Location = new Point(e.X - 10 , e.Y - 10 );
    }
    if (e.Button == MouseButtons.Right)
    {
        panel2.Visible = true;
        panel2.Location = new Point(e.X - 10, e.Y - 10);
    }
}
 
private void panel1_Paint(object sender, PaintEventArgs e)
{
    Graphics krug = panel1.CreateGraphics();
    Pen pen = new Pen(Brushes.Green);
    krug.DrawEllipse(pen, 0, 0, 20, 20);
}
 
private void panel2_Paint(object sender, PaintEventArgs e)
{
    Graphics kvadrat = panel2.CreateGraphics();
    Pen pen = new Pen(Brushes.Red);
    kvadrat.DrawRectangle(pen, 0, 0, 20, 20);
}