#include <bits/stdc++.h>
using namespace std;
//const long nPrime = 1000000007;
//const long nPrime = 998244353;
int main() {
    long n;
    cin >> n;
    vector<long> viA(n+1),viB(n+1);
    for(long i = 0; i < n; i++){
        cin >> viA[i];
    }
    for(long i = 0; i < n; i++){
        cin >> viB[i];
    }
    viA[n] = 2000000, viB[n] = 2000000;
    
    long nAns = 0;
    for(long i = 0; i < n; i++){
        nAns += abs(viA[i]-viB[i]);
    }
    cout << nAns << endl;
    
    long i = 0;
    long iPrev = 0;
    while(i <= n){
        if(viA[i] < viB[i]){
            i++;
            continue;
        }
        if(viA[i] > viB[i]){
            for(long j = 0; j < viA[i] - viB[i]; j++){
                cout << i+1 << " L" << endl;
            }
        }
        for(long j = i-1; j >= iPrev; j--){
            for(long k = 0; k < viB[j] - viA[j]; k++){
                cout << j+1 << " R" << endl;
            }
        }
        i++;
        iPrev = i;
    }
    return 0;
}