Osajono

input/Osajono5.java:22: error: cannot find symbol
	     reader.close();
	     ^
  symbol:   variable reader
  location: class Osajono5
1 error

public class Osajono5 {

	 public static void main(String[] args)
	 {
		 IO io = new IO();
	     int tuloste = 0;
	     String input = io.next();
	     int inputLength = input.length();
	     
	     tuloste = tuloste + inputLength;
	     
	     for (int i = 0; i < inputLength-1; i++)
	     {
	    	 String kok = "" + input.charAt(i);
			 String endOfStr = input.substring(i);
	    	 tuloste = tuloste + Math.max(endOfStr.length() - endOfStr.replaceAll(kok, "").length()-1,0); 
	     }
	     io.println(tuloste);
	     reader.close();
	 }
	 
}