using System.Text;
using static System.Math;
using System.Linq;
using System.Collections.Generic;
using System;

public class P
{
    public int id { get; set; }
    public int a { get; set; }
    public int b { get; set; }
}

public class Hello
{
    static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        line = Console.ReadLine().Trim().Split(' ');
        var b = Array.ConvertAll(line, int.Parse);
        getAns(n, a, b);
    }
    static void printAsb(List<P> asb)
    {
        var c = asb.Count();
        var sb = new StringBuilder();
        for (int i = c - 1; i >= 0; i--)
        {
            var jmax = asb[i].b - asb[i].a;
            for (int j = 0; j < jmax; j++)
                sb.Append(string.Format("{0} R", asb[i].id));
        }
        Console.Write(sb);
    }
    static void printAgb(List<P> agb)
    {
        var c = agb.Count();
        var sb = new StringBuilder();
        for (int i = 0; i < c; i++)
        {
            var jmax = agb[i].a - agb[i].b;
            for (int j = 0; j < jmax; j++)
                sb.Append(string.Format("{0} L", agb[i].id));
        }
        Console.Write(sb);
    }
    static void getAns(int n, int[] a, int[] b)
    {
        var asb = new List<P>();
        var agb = new List<P>();
        var s = 0L;
        for (int i = 0; i < n; i++)
        {
            s += Abs(a[i] - b[i]);
            if (a[i] < b[i]) asb.Add(new P { id = i + 1, a = a[i], b = b[i] });
            else if (a[i] > b[i]) agb.Add(new P { id = i + 1, a = a[i], b = b[i] });
        }
        Console.WriteLine(s);
        if (agb.Count() > 0) printAgb(agb);
        if (asb.Count() > 0) printAsb(asb);
    }
}