N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
cmd = []
for i in range(N):
    if A[i] >= B[i]:
        cmd.append(["L", A[i] - B[i], i + 1])
    else:
        cmd.append(["R", B[i] - A[i], i + 1])
ans = []
stuck = []
for i in range(len(cmd)):
    if cmd[i][0] == "L":
        if stuck != []:
            for j in range(len(stuck)):
                c = stuck.pop(-1)
                for k in range(c[0]):
                    ans.append([c[1], "R"])
            stuck = []
        for k in range(cmd[i][1]):
            ans.append([cmd[i][2], "L"])
    else:
        stuck.append([cmd[i][1], cmd[i][2]])

                    
if stuck != []:
    for j in range(len(stuck)):
        c = stuck.pop(-1)
        for k in range(c[0]):
            ans.append([c[1], "R"])

print(len(ans))
for i in range(len(ans)):
    print(*ans[i])