from collections import deque

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

ANS = deque()
for i in range(n):
    if A[i] < B[i]:
        cnt = B[i] - A[i]
        for j in range(cnt):
            ANS.appendleft((i + 1, 'R'))
    elif A[i] > B[i]:
        cnt = A[i] - B[i]
        for j in range(cnt):
            ANS.append((i + 1, 'L'))

print(len(ANS))
for ind, direction in ANS:
    print(ind, direction)