import sys
input = lambda : sys.stdin.readline().rstrip()

sys.setrecursionlimit(2*10**5+10)
write = lambda x: sys.stdout.write(x+"\n")
debug = lambda x: sys.stderr.write(x+"\n")
writef = lambda x: print("{:.12f}".format(x))

def runlength(s):
    if not s:
        return []
    c = s[0]
    v = 1
    n = len(s)
    l = []
    for i in range(1, n):
        if c==s[i]:
            v += 1
        else:
            l.append((c,v))
            c = s[i]
            v = 1
    l.append((c,v))
    return l

n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
lr = [0]*n
for i in range(n):
    if a[i]<b[i]:
        lr[i] = 1
    elif a[i]>b[i]:
        lr[i] = -1
ans = []
res = runlength(lr)
i = 0
for c,v in res:
    if c==0:
        pass
    elif c==-1:
        for j in range(i, i+v):
            for _ in range(abs(a[j]-b[j])):
                ans.append(f"{j+1} L")
    else:
        for j in range(i, i+v)[::-1]:
            for _ in range(abs(a[j]-b[j])):
                ans.append(f"{j+1} R")
    i += v
print(len(ans))
write("\n".join(ans))