m = input()

A = []
for x in xrange(m):
  A += [input()]

def get_segment(x):
  n = 0
  r = 0
  while r < x:
    n += 1
    r += 2**n
  return n

C = []
for x in A:
  c = ""
  n = get_segment(x)
  s = sum([2**k for k in xrange(n)])
  y = x - s
  while n > 0:
    if y % 2 == 1:
      c += "R"
    else:
      c += "L"
    n -= 1
    s -= 2**n
    y = y//2
  print c[::-1]