N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
L = []
R = []
ans = 0
for i in range(N):
    if A[i]>B[i]:
        L.append(i)
    if A[i]<B[i]:
        R.append(i)
    ans += abs(A[i]-B[i])
R.reverse()
print(ans)
for l in L:
    for _ in range(abs(A[l]-B[l])):
        print(str(l+1)+" L")
for r in R:
    for _ in range(abs(A[r]-B[r])):
        print(str(r+1)+" R")