n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
ans = []
cnt = 0
while True:
	if a == b: break
	for i in range(n):
		if a[i] == b[i]: continue
		if a[i] < b[i]:
			while a[i] < b[i]:
				if i < n - 1 and a[i] + 1 == a[i + 1]: break
				a[i] += 1
				cnt += 1
				ans.append([i + 1, "R"])
		else:
			while a[i] > b[i]:
				if i > 0 and a[i] - 1 == a[i - 1]: break
				a[i] -= 1
				cnt += 1
				ans.append([i + 1, "L"])
print(len(ans))
for i in ans:
	print(*i)