#![allow(unused_imports)]
#![allow(non_snake_case)]
use std::collections::HashMap;
use std::collections::HashSet;
use std::collections::VecDeque;

#[allow(unused_macros)]
macro_rules! read {
    ([$t:ty] ; $n:expr) =>
        ((0..$n).map(|_| read!([$t])).collect::<Vec<_>>());
    ($($t:ty),+ ; $n:expr) =>
        ((0..$n).map(|_| read!($($t),+)).collect::<Vec<_>>());
    ([$t:ty]) =>
        (rl().split_whitespace().map(|w| w.parse().unwrap()).collect::<Vec<$t>>());
    ($t:ty) =>
        (rl().parse::<$t>().unwrap());
    ($($t:ty),*) => {{
        let buf = rl();
        let mut w = buf.split_whitespace();
        ($(w.next().unwrap().parse::<$t>().unwrap()),*)
    }};
}

#[allow(dead_code)]
fn rl() -> String {
    let mut buf = String::new();
    std::io::stdin().read_line(&mut buf).unwrap();
    buf.trim_end().to_owned()
}

fn main() {
    let m = read!(usize);
    let a = read!(usize; m);
    let mut buf = String::new();
    for e in &a {
        buf.push_str(&parse(*e));
        buf.push('\n');
    }
    println!("{}", &buf[..buf.len()-1]);
}

fn parse(mut num: usize) -> String {
    let mut buf = vec![];
    while num != 0 {
        if (num - 1) & 1 == 0 {
            buf.push('L' as u8);
        } else {
            buf.push('R' as u8);
        }
        num = (num-1)>>1;
    }

    buf.reverse();
    String::from_utf8(buf).unwrap()
}