#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    int N; cin >> N;
    vector<int> A(N), B(N);
    rep(i,N) cin >> A[i];
    rep(i,N) cin >> B[i];
    vector<char> C(N);
    rep(i,N) {
        int sgn = B[i] - A[i];
        if(sgn >  0) C[i] = 'R';
        if(sgn <  0) C[i] = 'L';
        if(sgn == 0) C[i] = 'M';
    }

    vector<pair<char,vector<int>>> v = {{C[0], {0}}};
    for(int i = 1; i < N; i++) {
        if(v.back().first == C[i]) v.back().second.push_back(i);
        else v.push_back({C[i], {i}});;
    }

    vector<pair<int,char>> ans;
    for(auto [c, id] : v) {
        if(c == 'R') reverse(id.begin(), id.end());
        for(int i : id) {
            rep(_,abs(B[i] - A[i])) {
                ans.push_back({i + 1, c});
            }
        }
    }

    cout << ans.size() << "\n";
    for(auto [c, k] : ans) cout << c << " " << k << "\n";
}