import sys
m = int(input())
for n in map(int, sys.stdin.readlines()):
    n += 1
    current = 0
    result = ""
    for i in range(100):
        if current == n:
            break
        if n & 2**i:
            result += "R"
            current += 2**i
        else:
            result += "L"

    print(result[:-1])