#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  vector<int> A(N);
  for (int i = 0; i < N; i++){
    cin >> A[i];
  }
  vector<int> B(N);
  for (int i = 0; i < N; i++){
    cin >> B[i];
  }
  vector<pair<int, char>> ans;
  for (int i = 0; i < N; i++){
    while (A[i] > B[i]){
      ans.push_back(make_pair(i, 'L'));
      A[i]--;
    }
  }
  for (int i = N - 1; i >= 0; i--){
    while (A[i] < B[i]){
      ans.push_back(make_pair(i, 'R'));
      A[i]++;
    }
  }
  int M = ans.size();
  cout << M << endl;
  for (int i = 0; i < M; i++){
    cout << ans[i].first + 1 << ' ' << ans[i].second << endl;
  }
}