n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = [a[i] - b[i] for i in range(n)]
pl_inds = [i for i in range(n) if c[i] >= 0]
mi_inds = [i for i in range(n) if c[i] < 0]
mi_inds = mi_inds[::-1]
ans = []
for i in pl_inds:
	ans.extend([[i + 1, "L"]] * c[i])
for i in mi_inds:
	ans.extend([[i + 1, "R"]] * abs(c[i]))
print(len(ans))
for i in ans:
	print(*i)