n = int(input())
alst = list(map(int, input().split()))
blst = list(map(int, input().split()))
R = []
L = []
tot = 0
for i, (a, b) in enumerate(zip(alst, blst), 1):
    if a < b:
        R.append((a, b, i))
    elif a > b:
        L.append((a, b, i))
    tot += abs(a - b)
print(tot)
        
for a, b, i in R[::-1]:
    for _ in range(b - a):
        print(i, "R")

for a, b, i in L:
    for _ in range(a - b):
        print(i, "L")