using System;
using System.Text;

namespace No392{
    public class Program{
        public static void Main(string[] args){
            var sr = new StreamReader();
            //---------------------------------
            var m = sr.Next<int>();

            for(var i = 0; i < m; i++){
                var n = sr.Next<int>();

                var sb = new StringBuilder();
                while(n != 0){
                    var p = (n - 1) / 2;
                    sb.Insert(0, p == n / 2 ? 'L' : 'R');
                    n = p;
                }

                Console.WriteLine(sb);
            }
            //---------------------------------
        }
    }

    public class StreamReader{
        private readonly char[] _c = {' '};
        private int _index = -1;
        private string[] _input = new string[0];

        public T Next<T>(){
            if(_index == _input.Length - 1){
                _index = -1;
                while(true){
                    string rl = Console.ReadLine();
                    if(rl == null){
                        if(typeof(T).IsClass) return default(T);
                        return (T)typeof(T).GetField("MinValue").GetValue(null);
                    }
                    if(rl != ""){
                        _input = rl.Split(_c, StringSplitOptions.RemoveEmptyEntries);
                        break;
                    }
                }
            }
            return (T)Convert.ChangeType(_input[++_index], typeof(T), System.Globalization.CultureInfo.InvariantCulture);
        }
    }
}