using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Solution {
    static string output=null;
    
    enum Move{UpperLeft, UpperRight, Right, LowerRight, LowerLeft, Left};
    
    static void MakeMove(Move move)
    {
        switch (move)
        {
            case Move.UpperLeft: output+= "UL "; break;
            case Move.UpperRight:output+= "UR "; break;
            case Move.Right:     output+= "R ";  break;
            case Move.LowerRight:output+= "LR "; break;
            case Move.LowerLeft: output+= "LL "; break;
            case Move.Left:      output+= "L ";  break;
            default: output = "Error in MakeMove(Move m)"; break;
        }
            
    }
    static void MakeMove(int n,int i_start,int j_start,int i_end, int j_end)
    {
        int i_s=i_start;
        int j_s=j_start;
        int n_r=n;
       
        if((((i_start==i_end)&&(j_start==j_end))&&n<5))
        {
           Console.Out.WriteLine(n_r);
           Console.Out.WriteLine(output);
        }
        else
        {
            
        if((i_start>i_end) && (j_start>j_end))
        {  //Console.Out.Write("UpperLeft");
            i_s-=2;
            j_s-=1;
            MakeMove(Move.UpperLeft);
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        } else
        if((i_start>i_end) && (j_start<j_end))
        {
            //Console.Out.Write("UpperRight");
            i_s-=2;
            j_s+=1;
            MakeMove(Move.UpperRight);
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        }else
         if((i_start==i_end) && (j_start<j_end))
        {   
            //Console.Out.Write("Right");
            j_s+=2;
            MakeMove(Move.Right);
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        }else
         if((i_start<i_end) && (j_start<j_end))
        {   
           // Console.Out.Write("LowerRight");
            i_s+=2;
            j_s+=1;
            MakeMove(Move.LowerRight );
             n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        }else
            if((i_start<i_end) && (j_start>j_end))
        {   
            //Console.Out.Write("LowerLeft");
            i_s+=2;
            j_s-=1;
            MakeMove(Move.LowerLeft );
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        }else if((i_start==i_end) && (j_start>j_end))
        {
           // Console.Out.Write("Left");
            j_s-=2;
            MakeMove(Move.Left);
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        } else if((i_start>i_end) && (j_start==j_end))
        {
           // Console.Out.Write("UpperLe");
            i_s-=2;
            j_s-=1;
            MakeMove(Move.UpperLeft );
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        } else if((i_start<i_end) && (j_start==j_end))
        {   
            //Console.Out.Write("LowerRig");
            i_s+=2;
            j_s+=1;
            MakeMove(Move.LowerRight );
            n_r++;
            MakeMove(n_r,i_s,j_s,i_end,j_end);
        }else 
           
            {
                
               //bool test=((i_start>i_end) && (j_start==j_end));
               Console.Out.WriteLine("Si="+i_start);
               Console.Out.WriteLine("Sj="+j_start);
               Console.Out.WriteLine("Ei="+i_end);
               Console.Out.WriteLine("Ej="+j_end);
               
               Console.Out.Write("Case not defined");
            }
            
            
        }  
           
       
    }
    static bool IsInSimilarRow(int intOne, int intTwo)
    {
        if(intOne%2==0)
        {
            return (intOne/2)%2==(intTwo/2)%2;
        }else
        {
            return ((intOne+1)/2)%2==((intTwo+1)/2)%2;
        }
    }
    static bool IsEven(int integer)
    {
        if((integer)%2==0)
            return true;
        else return false;
    }
      static bool IsEven(int integer1,int integer2)
    {
        return ((integer1%2)==(integer2%2));
    
    }
    static bool PossibleToGetDestination(int n, int i_start, int j_start, int i_end, int j_end)
    {
       bool endJ_equal_startJ;
       endJ_equal_startJ = IsInSimilarRow(i_start,i_end);
       if(IsEven(i_start,i_end))
       {
         if(IsEven(j_start,j_end)==endJ_equal_startJ)
         {
          return true;
         }else
         return false;
       } else
       return false; 
    }
    static void printShortestPath(int n, int i_start, int j_start, int i_end, int j_end) {
        //  Print the distance along with the sequence of moves.\
        if(PossibleToGetDestination(n, i_start, j_start, i_end, j_end))
        {
        output=null;
       MakeMove(0,i_start, j_start, i_end, j_end);       
    
        }
        else Console.Out.WriteLine("Impossible");
    }

    static void Main(String[] args) {
        int n = Convert.ToInt32(Console.ReadLine());
        string[] tokens_i_start = Console.ReadLine().Split(' ');
        int i_start = Convert.ToInt32(tokens_i_start[0]);
        int j_start = Convert.ToInt32(tokens_i_start[1]);
        int i_end = Convert.ToInt32(tokens_i_start[2]);
        int j_end = Convert.ToInt32(tokens_i_start[3]);
        printShortestPath(n, i_start, j_start, i_end, j_end);
    }
}