# yc1650
n = int(input())
a = list(map(int, input().split()))

b = list(map(int, input().split()))
lq = []
rq = []
for i in range(n):
    if a[i] < b[i]:
        rq.append(i)
    elif a[i] > b[i]:
        lq.append(i)
m = 0
ans = []
for i in rq[::-1]:
    m += b[i]-a[i]
    for _ in range(b[i]-a[i]):
        ans.append(str(i+1)+" R")
for i in lq:
    m += a[i]-b[i]
    for _ in range(a[i]-b[i]):
        ans.append(str(i+1)+" L")
print(m)
for i in ans:
    print(i)