using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
using System.Threading;
using System.Runtime.CompilerServices;
using System.Diagnostics;
static class Program{
	const int mod=(int)1e9+7;
	static readonly int[][] di1=new int[][]{new int[]{0,1},new int[]{-1,0},new int[]{0,-1},new int[]{1,0}};
	static void Main(){
		Sc sc=new Sc();
		var (s,t)=sc.Tp2<int>();
		int c=0;
		int yy=0,xx=0,g=1;
		int[] sp=new int[2],tp=new int[2];
		StringBuilder sb=new StringBuilder();
		for(int i = 0;;i++) {
			int p=(i+2)/2;
			if(g<=s&&s<g+p){
				c++;
				sp[0]=yy+(s-g)*di1[i%4][0];
				sp[1]=xx+(s-g)*di1[i%4][1];
			}
			if(g<=t&&t<g+p){
				c++;
				tp[0]=yy+(t-g)*di1[i%4][0];
				tp[1]=xx+(t-g)*di1[i%4][1];
			}
			g+=p;
			yy+=di1[i%4][0]*p;
			xx+=di1[i%4][1]*p;
			if(c==2){break;}
		}
		int ans=0;
		if((Abs(sp[0]-tp[0])+Abs(sp[1]-tp[1]))%2==1){
			sb.Append("DUD");
			ans+=3;
			sp[0]++;
			Fu(sp,tp);
			sb.Append("\n");
		}
		else if(Abs(sp[0]+sp[1])%2==0){
			sb.Append("DUD");
			ans+=3;
			sp[0]++;
			Fu(sp,new int[]{1,0});
			sb.Append("URU");
			ans+=3;
			Fu(new int[]{-1,1},tp);
			sb.Append("\n");
		}
		else{
			sb.Append("DUD");
			ans+=3;
			sp[0]++;
			Fu(sp,new int[]{0,0});
			sb.Append("UDDLDDRUU");
			ans+=9;
			Fu(new int[]{1,0},tp);
			sb.Append("\n");
		}
		void Fu(int[] p1,int[] p2) {
			while(p1[0]+2<=p2[0]){sb.Append("DDUD");p1[0]+=2;ans+=4;}
			while(p1[0]-2>=p2[0]){sb.Append("UUDU");p1[0]-=2;ans+=4;}
			while(p1[1]+2<=p2[1]){sb.Append("RRLR");p1[1]+=2;ans+=4;}
			while(p1[1]-2>=p2[1]){sb.Append("LLRL");p1[1]-=2;ans+=4;}
			if(p1[0]<p2[0]){sb.Append("D");ans++;}
			if(p1[0]>p2[0]){sb.Append("U");ans++;}
			if(p1[1]<p2[1]){sb.Append("RLR");ans+=3;}
			if(p1[1]>p2[1]){sb.Append("LRL");ans+=3;}
		}
		Console.WriteLine(0);
		Console.WriteLine(ans);
		Console.Write(sb);
	}
}

public class Sc{
	public int I{get{return int.Parse(Console.ReadLine());}}
	public long L{get{return long.Parse(Console.ReadLine());}}
	public double D{get{return double.Parse(Console.ReadLine());}}
	public string S{get{return Console.ReadLine();}}
	public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
	public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
	public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
	public string[] Sa{get{return Console.ReadLine().Split();}}
	public object[] Oa{get{return Console.ReadLine().Split();}}
	public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
	public int[] Ia3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),int.Parse);}
	public int[] Ia3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),int.Parse);}
	public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
	public long[] La3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),long.Parse);}
	public long[] La3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),long.Parse);}
	public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}
	public double[] Da3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),double.Parse);}
	public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
	public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
	public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
	public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
	public (T,T) Tp2<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]));}
	public (T,T,T) Tp3<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]),Ct<T>(s[2]));}
	private T Ct<T>(string s){return (T)Convert.ChangeType(s,typeof(T));}
}