static void Main()
{
StudentSystem studentSystem = new StudentSystem();
string input;
while ((input = Console.ReadLine()) != "Exit")
{
string[] args = input.Split();
string command = args[0];
string name = args[1];
switch (command)
{
case "Create":
var age = int.Parse(args[2]);
var grade = double.Parse(args[3]);
studentSystem.CreateStudent(name, age, grade);
break;
case "Show":
Console.WriteLine(studentSystem.StudentInfo(name));
break;
}
}
}
