#include <iostream>
#include <vector>
#include <stack>
using namespace std;
int main(){
    int n;cin>>n;
    vector<int> A(n),B(n);
    for(int i = 0; n > i; i++){
        cin>>A[i];
    }
    for(int i = 0; n > i; i++){
        cin>>B[i];
    }
    vector<pair<int,char>> C;
    stack<int> D;
    for(int i = 0; n > i; i++){
        if(A[i]>=B[i]){
            while(D.size()){
                int x = D.top();D.pop();
                while(A[x-1]!=B[x-1]){
                    C.push_back({x,'R'});
                    A[x-1]++;
                }
            }
            while(A[i]!=B[i]){
                C.push_back({i+1,'L'});
                A[i]--;
            }
        }else if(A[i] < B[i]){
            D.push(i+1);
        }
    }
    while(D.size()){
        int x = D.top();D.pop();
        while(A[x-1]!=B[x-1]){
            C.push_back({x,'R'});
            A[x-1]++;
        }
    }
    cout << C.size() << endl;
    for(int i = 0; C.size() > i; i++){
        cout << C[i].first << " " << C[i].second << endl;
    }
}