#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
#define rep(i,n) for(int i=0; i<(n); i++)

int N;
vector<int> A;
vector<int> B;
vector<pair<int,char>> ans;

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  cin >> N;
  A.resize(N);
  rep(i,N) cin >> A[i];
  B.resize(N);
  rep(i,N) cin >> B[i];

  rep(i,N) if(A[i] > B[i]){
    while(A[i] != B[i]){
      ans.push_back({i,'L'});
      A[i]--;
    }
  }
  for(int i=N-1; i>=0; i--) if(A[i] < B[i]){
    while(A[i] != B[i]){
      ans.push_back({i,'R'});
      A[i]++;
    }
  }

  cout << ans.size() << "\n";
  for(auto a : ans){
    cout << (a.first+1) << " " << a.second << "\n";
  }
  return 0;
}