/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Main
{
    
    
    public static void main (String[] args) throws java.lang.Exception
    {
        // your code goes here
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int m = Integer.parseInt(br.readLine());
        
        HashMap<Integer,String> ans = makeTree();
        for(int i=0;i<m;i++){
            int n = Integer.parseInt(br.readLine());
            System.out.println(ans.get(n));
        }
        return;
        
    }
    
    public static HashMap<Integer,String> makeTree(){
        HashMap<Integer,String> ret = new HashMap<Integer,String>();
        Node base = new Node();
        base.n = 0;
        ret.put(0,"");
        Deque<Node> deque = new ArrayDeque<Node>();
        deque.addLast(base);
        for(int i=1;i<=4094;i+=2){
            Node node = deque.pollFirst();
            
            Node left = new Node();
            left.n = i;
            left.route = new StringBuilder(node.route.toString());
            left.route.append("L");
            ret.put(i,left.route.toString());
            deque.addLast(left);
            
            Node right = new Node();
            right.n = i+1;
            right.route = new StringBuilder(node.route.toString());
            right.route.append("R");
            ret.put(i+1,right.route.toString());
            deque.addLast(right);
        }
        return ret;
        
    }
    
    
    private static class Node{
        StringBuilder route = new StringBuilder();
        int    n;
        Node parent,left,right;
    }
    
}