U = 10 ** 7
N = int(input())
A = [-1] + list(map(int, input().split())) + [U]
B = [-1] + list(map(int, input().split())) + [U]


answer = []
i = 0
while i <= N:
    while i <= N and A[i] == B[i]:
        i += 1

    # 左寄せ
    while i <= N and A[i] > B[i]:
        answer.append((i, B[i] - A[i]))
        i += 1

    while i <= N and A[i] == B[i]:
        i += 1

    # 右寄せ
    tmp = []
    while i <= N and A[i] < B[i]:
        tmp.append((i, B[i] - A[i]))
        i += 1
    answer.extend(tmp[::-1])

ans = []
cnt = 0
for i, d in answer:
    if d > 0:
        direction = "R"
    else:
        d = -d
        direction = "L"
    cnt += d
    ans.extend(
        ["{} {}".format(i, direction)] * d
    )

print(len(ans))
print("\n".join(ans))