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 = tar + w - x;
			StringBuilder sb = new StringBuilder();
			for (int i = 0; i < h; i++) {
				w /= 2;
				if (tar > w) {
					sb.append("R");
					tar -= w;
				} else {
					sb.append("L");
				}
			}
			System.out.println(sb);
			n--;
		}
	}
}