import sys
input=lambda: sys.stdin.readline().rstrip()
m=int(input())
def ans(x):
  n=len(str(bin(x)))-2
  if x==2**n-1:
    return "L"*n
  else:
    ret=""
    x+=1
    for s in str(bin(x))[3:][::-1]:
      if s=="0":
        ret+="L"
      else:
        ret+="R"
    return ret
for _ in range(m):
  print(ans(int(input())))