def main():
    for _ in range(int(input())):
        A = int(input())
        transition_r = ""
        while A > 0:
            match A % 2:
                case 0:
                    transition_r += "R"
                    A = (A-2) // 2
                case 1:
                    transition_r += "L"
                    A = (A-1) // 2

        print(transition_r[::-1])


if __name__ == "__main__":
    main()