// Teacher code program
using System;
public class Program
{
// -------------------------
// Subprograms
// -------------------------
static string tcode (string teacher)
{
string[] letters = new string[2];
letters[0] = teacher.Substring(0, 1);
int space = teacher.IndexOf(" ");
letters[1] = teacher.Substring(space + 1, 2);
string teacher_code = string.Join("", letters);
teacher_code = teacher_code.ToUpper();
return teacher_code;
}
// -------------------------
// Main program
// -------------------------
static void Main()
{
Console.Write("Enter the name of the teacher: ");
string teacher = Console.ReadLine();
string teacher_code = tcode(teacher);
Console.WriteLine(teacher_code);
}
}
