Stones

input/JavaApplication1.java:4: error: package com.sun.xml.internal.ws.policy.privateutil.PolicyUtils does not exist
import com.sun.xml.internal.ws.policy.privateutil.PolicyUtils.IO;
                                                             ^
1 error

import com.sun.xml.internal.ws.policy.privateutil.PolicyUtils.IO;
import java.util.Scanner;

/**
 *
 * @author tuukkatu
 */
public class JavaApplication1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) 
    {
        IO io = new IO();
	
	String stones = io.next();
        
        int counter = 0;
        
        int pointer1 = 0;
        
        int pointer2 = 1;
        
        while (pointer2 < stones.length())
        {
            if (stones.charAt(pointer2) == stones.charAt(pointer1))
            {
                pointer1++;
                
                pointer2++;
                
                counter++;
            }
            else
            {
                pointer1++;
                
                pointer2++;
            }
        }
      
        io.println(counter);
	
	io.close();
    }
}