void buttonClick(object sender, EventArgs e) {
int sen=lst.IndexOf((sender as Button));
Form s=null;
switch(sen) {
case 0 :s=new Test();break;
case 1 :s=new First();break;
case 2 :s=new MCD();break;
case 3 :s=new Tris();break;
case 4 :s=new Game2048();break;
case 5 :s=new Calcolatrice();break;
case 6 :s=new Convertitore();break;
case 7 :s=new Tiles();break;
case 8 :s=new Scomposizione();break;
case 9 :s=new Semplificazione();break;
case 10:s=new Notazione();break;
case 11:s=new Password();break;
case 12:s=new Simon();break;
case 13:s=new MemorySetting();break;
case 14:s=new SwitchSetting();break;
case 15:s=new SnakeSingle();break;
case 16:s=new Sudoku();break;
case 17:s=new Piano();break;
case 18:s=new Anagrammi();break;
case 19:s=new Galattron();break;
case 20:s=new MineSweeper();break;
case 21:s=new Squash();break;
case 22:s=new Ruffini();break;
case 23:s=new SpinTheCircle();break;
case 24:s=new BlackJack();break;
case 25:s=new Sette_e_Mezzo();break;
case 26:s=new Ten();break;
case 27:s=new Arkanoid();break;
case 28:s=new Browser();break;
case 29:s=new Forza4();break;
case 30:s=new Game1010();break;
case 31:s=new Tower();break;
case 32:s=new Dama();break;
}if(lst[sen].Text!="WIP") { s.Show();Hide(); }
}