static void Main(string[] args)
{
string s = "30";
int a = int.Parse(s);
Console.WriteLine("bonjour G22" + a.ToString());
point P1 = new point(3, 5);
point P2 = new point(4, 20);
P1.print();
P2.print();
P1.deplacer(7, 10);
P1.print();
Console.Write("la distance entre P1 et P2 = ");
Console.WriteLine(P1.Dist(ref P2));
point M = new point(0, 0);
M = P1.pointmilieux(ref P2);
M.print();
Console.ReadKey();//console holde put it in the end
}