import java.io.*;

public class ByteArrayInputStreamDemo
{
	public static void main(String[] args)
	{
		String s = "abcdefghijklmnopqrstuvwxyz";
		byte[] b = s.getBytes();
		ByteArrayInputStream bas = new ByteArrayInputStream(b);
		for(int i=0; i<2;i++)
		{
			int c;
			while((c=bas.read()) != -1)
			{
				if(i==0)
					System.out.print((char)c);
				else
					System.out.print(Character.toUpperCase((char)c));
			}
			System.out.println();
			bas.reset();
		}
	}
}