#yuki_392

def f(a):
 n=a
 s=""
 while n>0:
  if n%2==0:
   s=s+'R'
  else:
   s=s+'L'
  n=(n+1)/2-1
 return s[::-1]
 
m=int(raw_input())
for i in xrange(m):
 a=int(raw_input())
 print f(a)