#include <bits/stdc++.h>
using namespace std;

int n;
int a[200000], b[200000];
vector<int> c;
vector<bool> d;

int main()
{
	cin >> n;

	for (int i = 0; i < n; i++)
		cin >> a[i];

	for (int i = 0; i < n; i++)
		cin >> b[i];

	for (int i = 0; i < n; i++) {
		if (b[i] == a[i])
			continue;

		if (b[i] < a[i]) {
			for (int j = 0; j < a[i] - b[i]; j++) {
				c.push_back(i + 1);
				d.push_back(0);
			}
		}

		if (b[i] > a[i]) {
			int t = i;

			while (t < n && b[t] > a[t])
				t++;

			for (int j = t - 1; j >= i; j--) {
				for (int k = 0; k < b[j] - a[j]; k++) {
					c.push_back(j + 1);
					d.push_back(1);
				}
			}

			i = t - 1;
		}
	}

	cout << c.size() << endl;

	for (int i = 0; i < c.size(); i++) {
		cout << c[i];

		if (d[i])
			cout << " R" << endl;
		else
			cout << " L" << endl;
	}
}