N=int(input())
A=["*"]+list(map(int,input().split()))+[10**8]
B=["*"]+list(map(int,input().split()))+[10**8]

D=[0]*(N+2)
for i in range(1,N+1):
    if A[i]<B[i]:
        D[i]=1
    elif A[i]>B[i]:
        D[i]=-1

X=[]
Y=[]
a=D[1]
for i in range(1,N+2):
    if D[i]!=a:
        X.append(Y)
        Y=[]
        a=D[i]
    Y.append(i)

X.append(Y)

Command=[]
for y in X:
    if D[y[0]]==1:
        for z in y[::-1]:
            while A[z]<B[z]:
                Command.append((z,"R"))
                A[z]+=1
    elif D[y[0]]==-1:
        for z in y:
            while A[z]>B[z]:
                Command.append((z,"L"))
                A[z]-=1
    else:
        continue

print(len(Command))
for c in Command:
    print(*c)