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

ans1 = []
ans2 = []
for i in range(N):
    a, b = A[i], B[i]
    if a > b: # 左に動かす
        for j in range(a - b):
            ans1.append((i + 1, 'L'))

    elif a < b:
        for j in range(b - a):
            ans2.append((i + 1, 'R'))

# ans1 は順番に
# ans2 は逆順に
ans = len(ans1) + len(ans2)
print(ans)

for a in ans1:
    print(*a)
for a in ans2[::-1]:
    print(*a)