public Student (string name,double bel, double mat,double it)
Student[] s = new Student[3];
s[i].Name=Console.ReadLine();
s[i].Bel=double.Parse(Console.ReadLine());
Console.Write("Математика");
s[i].Mat=double.Parse(Console.ReadLine());
s[i].It=double.Parse(Console.ReadLine());
Console.WriteLine("#####################################################################");