n = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

ans = []
for i in range(n):
	if A[i] <= B[i]:
		continue
	for _ in range(A[i] - B[i]):
		ans.append('{} L'.format(i+1))
for i in range(n-1, -1, -1):
	if A[i] >= B[i]:
		continue
	for _ in range(B[i] - A[i]):
		ans.append('{} R'.format(i+1))

print(len(ans))
for i in range(len(ans)):
	print(ans[i])