# yc1650
def solver(i, m):
    if a[i]-b[i] < 0:
        while a[i] < b[i]:
            if i+1 < n and a[i+1] == a[i]+1:
                m += solver(i+1, m)
            a[i] += 1
            m += 1
            ans.append(str(i+1)+" R")
    elif a[i]-b[i] > 0:
        while a[i] > b[i]:
            if i-1 >= 0 and a[i] == a[i-1]+1:
                m += solver(i-1, m)
            a[i] -= 1
            m += 1
            ans.append(str(i+1)+" L")
    return m
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
ans = []
m = 0
for i in range(n):
    m += solver(i, 0)
print(m)
for i in ans:
    print(i)