import sys
input = sys.stdin.readline
N = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))

res = []
s = {i for i in range(N)}
while len(s):
  t = set(s)
  for i in t:
    if a[i] < b[i]:
      if i + 1 < N and a[i + 1] == a[i] + 1: continue
      res.append((i + 1, "R"))
      a[i] += 1
    elif a[i] > b[i]:
      if i and a[i - 1] == a[i] + 1: continue
      res.append((i + 1, "L"))
      a[i] -= 1
    if a[i] == b[i]: s.discard(i)

print(len(res))
for r in res: print(*r)