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 c6_4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        int[,] score = new int[2,3];
        double[] avg = new double[2];
        double classAvg;
        private void button1_Click(object sender, EventArgs e)
        {
            score[0, 0] = int.Parse(textBox1_1.Text);
            score[0, 1] = int.Parse(textBox1_2.Text);
            score[0, 2] = int.Parse(textBox1_3.Text);

            score[1, 0] = int.Parse(textBox2_1.Text);
            score[1, 1] = int.Parse(textBox2_2.Text);
            score[1, 2] = int.Parse(textBox2_3.Text);

            //avg
            avg[0] = (score[0, 0] + score[0, 1] + score[0, 2]) / 3;
            avg[1] = (score[1, 0] + score[1, 1] + score[1, 2]) / 3;
            textBox1_4.Text = avg[0].ToString();
            textBox2_4.Text = avg[1].ToString();
            
            //class avg
            classAvg = (avg[0] + avg[1]) / 2;
            textBox_avg.Text = classAvg.ToString();
        }
    }
}