n = int(input())
a = list(map(int,input().split()))
b = list(map(int,input().split()))
l = []
kaisu = 0
flg = 0
q_flg = 0
cnt = 0
for i in range(n):
    if a[i] == b[i]:
        cnt += 1
        continue
    kaisu += abs(a[i] - b[i])
    flg = 1 if a[i] > b[i] else -1
    if q_flg != flg:
        ren = 1
        cnt += 1
    else:
        ren += 1
    l.append((i+1,flg * ren,cnt))
    q_flg = flg
print(kaisu)
l.sort(key = lambda x :(x[2],x[1]))
for i,ren,cnt in l:
    mark = "R" if a[i-1] < b[i-1] else "L"
    for j in range(abs(a[i-1] - b[i-1])):
        print(i,mark)