#include<bits/stdc++.h>
typedef long long ll;
using namespace std;

void move(int x1,int y1,int x2,int y2)
{
	if(x1>x2){
		if(y1>y2){
			cout<<"UL ";
			move(x1-2,y1-1,x2,y2);
		}
		else{
			cout<<"UR ";
			move(x1-2,y1+1,x2,y2);
		}
	}
	else if(x1<x2){
		if(y1>y2){
			cout<<"LL ";
			move(x1+2,y1-1,x2,y2);
		}
		else{
			cout<<"LR ";
			move(x1+2,y1+1,x2,y2);
		}
	}
	else if(x1==x2){
		if(y1>y2){
			cout<<"L ";
			move(x1,y1-2,x2,y2);
		}
		else if(y1<y2){
			cout<<"R ";
			move(x1,y1+2,x2,y2);
		}else return;
	}
}

int main()
{
	ll n,i,x1,y1,x2,y2;
	bool flag=1;
	cin>>n>>x1>>y1>>x2>>y2;
	if(abs(x1-x2)%2!=0)
		flag=0;
	if(abs((x1-x2)/2)%2==0){
		if(abs(y1-y2)%2==0){
			flag=0;
		}
	}
	if(abs((x1-x2)/2)%2!=0){
		if(abs(y1-y2)%2!=0){
			flag=0;
		}
	}
	if(flag==1)
		move(x1,y1,x2,y2);
	else
		cout<<"Impossible";
	return 0;
}