import java.io.*;
    public class filesinputoutput_Example
    {
    	public static void main(String[] args) 
        {
 	   String object  = "interview mania";
           byte p[] = object.getBytes();
           ByteArrayInputStream object1 = new ByteArrayInputStream(p);
           for (int K = 0; K < 2; ++K) 
           {
               int q;
               while ((q = object1.read()) != -1) 
               {
            	   if (K == 0) 
                   {
                       System.out.print(Character.toUpperCase((char)q)); 
            	   }
               }
           }
        }
    }