import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int m = scan.nextInt();
		int[]A = new int[m];
		for(int i = 0; i < m; i++) {
			A[i] = scan.nextInt();
		}
		scan.close();
		StringBuilder[] sb = new StringBuilder[m];
		for(int i = 0; i < m; i++) {
			int t = A[i];
			sb[i] = new StringBuilder();
			while(t != 0) {
				if(t % 2 == 0) {
					sb[i].append("R");
					t = t / 2 - 1;
				}else {
					sb[i].append("L");
					t = t / 2;
				}
			}
		}
		for(int i = 0; i < m; i++) {
			System.out.println(sb[i].reverse().toString());
		}
	}
}