n = int(input())
a = map(int, input().split())
b = map(int, input().split())
d = [ai - bi for ai, bi in zip(a, b)]
ans = []
i = 0
while i < n:
    j = i
    while j < n and d[j] < 0:
        j += 1
    for k in range(i, j)[::-1]:
        ans += [(k, 'R')] * -d[k]
    i = j
    while j < n and d[j] >= 0:
        j += 1
    for k in range(i, j):
        ans += [(k, 'L')] * d[k]
    i = j

print(len(ans))
for k, c in ans:
    print(k + 1, c)