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 kdamultipl
{
    public partial class Form1 : Form
    {
        int a;
        int b;
        int c;
        int sum;
        public Form1()
        {
            InitializeComponent();

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

            a = Convert.ToInt32(Console.ReadLine());
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {

            b = Convert.ToInt32(Console.ReadLine());
        }

        private void Form1_Load(object sender, EventArgs e)
        {



        }

        private void button1_Click(object sender, EventArgs e)
        {
            sum = a + b + c;
            Console.WriteLine();
        }

        private void textBox3_TextChanged(object sender, EventArgs e)
        {
            c = Convert.ToInt32(Console.ReadLine());
        }
    }
}