#yuki1650
n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
res=[]
for i in range(n):
 x=a[i]
 y=b[i]
 if x>y:
  for j in range(x-y):
   res.append([i+1,'L'])
for i in range(n-1,-1,-1):
 x=a[i]
 y=b[i]
 if x<y:
  for j in range(y-x):
   res.append([i+1,'R'])
print (len(res))
for x,y in res:
 print(x,y)