using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    static class Program
    {

        static int Citire(string mesaj)
        {
            Form1 f = new Form1("un test");

            f.ShowDialog();
            return f.Valoare;
        }

        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);

            //Form1 f = new Form1("un test");
            //// Application.Run(new Form1("un test"));

            //// Application.Run(f);//nu trebuie folosita asta pt ca distruge formularul

            //f.ShowDialog();
            //MessageBox.Show(f.Valoare.ToString());

            int n = Citire("n=");
            int[] v = new int[n];

            for(int i=0;i<v.Length;i++)
            {
                v[i] = Citire("Elem" + (i + 1));

            }

            MessageBox.Show(v.Sum().ToString());
        }
    }
}


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(string mesaj)
        {
            InitializeComponent();
            lblMesaj.Text = mesaj;
        }

        public int Valoare
        {
            get
            {
                return int.Parse(txtValoare.Text);
            }
        }


        private void button1_Click(object sender, EventArgs e)
        {
            Close();
        }
    }
}