/*
Online Java - IDE, Code Editor, Compiler

Online Java is a quick and easy tool that helps you to build, compile, test your programs online.
*/

public class Main
{
     static char[] dominoes = {'.', 'L', '.', 'R', '.','.','.','.','L'};
        int dominoesLength=dominoes.length;
        //System.out.println(dominoes.length);
        static int temp;
        static int count=0;
        
    public static void moveleft()
    {
        for (int i=dominoes.length; i<(dominoes.length)/2)+1;i--)
        {
            if (dominoes[i]=='.')
            {
                System.out.println("");
                
            }
            
            if (i!=dominoes.length)
            {
            if (dominoes[i]=='L' && dominoes[i-1]!='R' )
            {
                dominoes[i-1]='.';
                
            }
            
            if (dominoes[i]=='R' && dominoes[i-1]!='L' )
            {
                
                
            }
            
             if (dominoes[i]=='R' && dominoes[i-1]!='R' )
            {
                
                
            }
            
            if (dominoes[i]=='L' && dominoes[i-1]!='.' )
            {
                dominoes[i-1]='.';
                
                
            }
            
            if (dominoes[i]=='R' && dominoes[i+1]!='.' )
            {
                dominoes[i+1]='R';
                
                
            }
            
        
        
        
        
    }
    
      public static void moveright()
    {
        for (int i=0; i<((dominoes.length)/2)+1;i++)
        {
            if (dominoes[i]=='.')
            {
                System.out.println("");
                
            }
            count++;
            
            if (count%2==1)
            {
                count=0;
                moveleft();
            }
        
    }
    }
    
    
    public static void main(String[] args) {
        System.out.println("Welcome to Online IDE!! Happy Coding :)");
        
       
        moveright();
        
            
        }
        
    }