import sys


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

result = []


sys.setrecursionlimit(1000000)
def dfs(i):
    while A[i] != B[i]:
        if A[i]-B[i] > 0:
            if i == 0 or A[i-1] != A[i] - 1:
                A[i] -= 1
                result.append((i+1, "L"))
            else:
                dfs(i-1)
        else:
            if i == N-1 or A[i+1] != A[i] + 1:
                A[i] += 1
                result.append((i+1, "R"))
            else:
                dfs(i+1)

for i in range(N):
    dfs(i)
print(len(result))
for res in result:
    print(*res)