#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#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(){
  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;
}


struct ios_do_not_sync{
  ios_do_not_sync(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
  }
} ios_do_not_sync_instance;