#include<iostream>
#include<vector>
using namespace std;
int N,A[2<<17],B[2<<17];
vector<pair<int,bool> >E;
main()
{
	cin>>N;
	for(int i=0;i<N;i++)cin>>A[i];
	for(int i=0;i<N;i++)cin>>B[i];
	int id=0;
	while(true)
	{
		if(A[id]<=B[id])
		{
			if(id+1==N||A[id+1]>B[id])break;
		}
		else
		{
			if(id==0||A[id-1]<B[id])break;
		}
		id++;
	}
	for(int i=id;i<N;i++)
	{
		for(int t=A[i];t>B[i];t--)E.push_back(make_pair(i+1,false));
		for(int t=A[i];t<B[i];t++)E.push_back(make_pair(i+1,true));
	}
	for(int i=id-1;i>=0;i--)
	{
		for(int t=A[i];t>B[i];t--)E.push_back(make_pair(i+1,false));
		for(int t=A[i];t<B[i];t++)E.push_back(make_pair(i+1,true));
	}
	cout<<E.size()<<endl;
	for(pair<int,bool>p:E)cout<<p.first<<" "<<(p.second?'R':'L')<<"\n";
}