star 21.txt

/* A
   BB
   CCC
   DDDD
   EEEEE */
import java.util.Scanner;
class Star21
{
public static void main(String[] args)
{
Scanner s=new Scanner(System.in);
System.out.println("enter range");
int n=s.nextInt();

for(int i=1;i<=n;i++)
{
	for(int j=1;j<=i;j++)
	{
	System.out.print((char)(i+64)+"");
	}
System.out.println();
}
}
}