using System;
class MainClass {
public static void Main() {
char ch;
for(ch='A'; ch<= 'E'; ch++)
switch(ch) {
case 'A':
Console.WriteLine("ch is A");
break;
case 'B':
Console.WriteLine("ch is B");
break;
case 'C':
Console.WriteLine("ch is C");
break;
case 'D':
Console.WriteLine("ch is D");
break;
case 'E':
Console.WriteLine("ch is E");
break;
}
}
}