import java.io.*;
public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int n = Integer.parseInt(br.readLine());
		while (n > 0) {
			int tar = Integer.parseInt(br.readLine());
			int x = 0;
			int h = 0;
			int w = 1;
			while (x < tar) {
				h++;
				w *= 2;
				x += w;
			}
			tar = x - tar;
			StringBuilder sb = new StringBuilder();
			for (; h > 0; h--) {
				if (tar%2 == 0) {
					sb.append("R");
				} else {
					sb.append("L");
				}
				tar /= 2;
			}
			System.out.println(sb.reverse());
			n--;
		}
	}
}