import java.util.Scanner;

public class Main {

	@SuppressWarnings("resource")
	public static void main(String args[]) {
		Scanner scanner = new Scanner(System.in);
		int m=scanner.nextInt();
		for(int i=0;i<m;i++) {
			int a=scanner.nextInt();
			dfs("",0,a);
		}
	}

	private static void dfs(String string, int i, int a) {
		if(i==a) {
			System.out.println(string);
			return;
		}
		else if(i>4094) {
			return;
		}
		dfs(string+"L",i*2+1,a);
		dfs(string+"R",i*2+2,a);
	}
}