N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
M = sum([abs(a - b) for (a, b) in zip(A, B)])
print(M)
for i in range(N)[::-1]:
    if A[i] <= B[i]:
        for _ in range(B[i] - A[i]):
            print(i+1, 'R')
for i in range(N):
    if A[i] > B[i]:
        for _ in range(A[i] - B[i]):
            print(i+1, 'L')