import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Iterator;

public class Main{
	public static void main(String[] args) {
		new Main().solver();
	}

	void solver() {
		Scanner sc = new Scanner(System.in);
		int m = sc.nextInt();
		if (m <= 0 || m > 4094)
			throw new AssertionError();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < m; i++) {
			int a = sc.nextInt();
			if (a <= 0 || a > 4094)
				throw new AssertionError();
			StringBuilder sb2 = new StringBuilder();
			for (; a > 0; a >>= 1) {
				if ((a & 1) == 1) {
					sb2.insert(0, "L");
				} else {
					sb2.insert(0, "R");
				}
				a -= 1;
			}
			sb2.append("\n");
			sb.append(sb2);
		}
		System.out.print(sb.toString());
	}

	private static class Scanner {
		BufferedReader br;
		Iterator<String> it;

		Scanner(InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}

		String next() throws RuntimeException {
			try {
				if (it == null || !it.hasNext())
					it = Arrays.asList(br.readLine().split(" ")).iterator();
				return it.next();
			} catch (IOException e) {
				throw new IllegalStateException();
			}
		}

		int nextInt() throws RuntimeException {
			return Integer.parseInt(next());
		}

		long nextLong() throws RuntimeException {
			return Long.parseLong(next());
		}

		double nextDouble() throws RuntimeException {
			return Double.parseDouble(next());
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
				throw new IllegalStateException();
			}
		}
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}
}