import java.util.ArrayList;
import java.util.List;

public class Animation
{
	public static void main(String s[])
	{
		int speeds[] = {2,3,2,10,1,1,2};
		String inits[] = {"..R....","RR..LRL","LRLR.LRLR","RLRLRLRLRL","...","LRRL.LR.LRR.R.LRRL.","..R.L.."};		
		
		for(int i = 0; i < speeds.length; i++)
		{
			Animation a = new Animation();
			String[] result = a.animate(speeds[i], inits[i]);
			
			for(String r : result)
				System.out.println(r);
			
			System.out.println();
		}
	}
	
	public String[] animate(int speed, String init)
	{		
		int curr[] = new int[init.length()];
		List<String> result = new ArrayList<String>();
		boolean empty = false;
		
		for(int i = 0; i<init.length(); i++)
			curr[i] = init.charAt(i)=='.'?0:init.charAt(i);
		
		while(!empty)
		{
			StringBuilder state = new StringBuilder();
			int next[] = new int[curr.length];
			empty = true;
			
			for(int i = 0; i < curr.length; i++)
				if(curr[i] != 0)
				{
					state.append('X');
					empty = false;
				}
				else
					state.append('.');
			
			for(int i=0; i<curr.length; i++)
			{
				if(curr[i]>='R' && i+speed<next.length)
					next[i+speed]+='R';
				if((curr[i]=='L' || curr[i]>'R') && i-speed>=0)
					next[i-speed]+='L';
			}

			result.add(state.toString());			
			curr = next;			
		}
		
		return result.toArray(new String[0]);
	}
}