import java.util.*;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int m = sc.nextInt();
        int[] tage = new int[m];
        StringBuilder sb = new StringBuilder();
        for(int i=0; i<m; i++){
        	tage[i] = sc.nextInt();
        	while(tage[i]>0){
        		if(tage[i]%2==0){
        			sb.append("R");
        			tage[i] = tage[i]/2-1;
        		}else{
        			sb.append("L");
        			tage[i] /= 2;
        		}
        		
        	}
        	sb.append("\n");
        }
        System.out.println(sb);
        sc.close();
    }
}