#include <stdio.h>
#include <math.h>
#define rep(i, n) for (i = 0; i < n; i++)
#define left 0
#define right 1

int follow(int s, int r) {
	int i, a = s;
	if (r == left) a = 2 * a +  1;
	else if (r == right) a = 2 * a + 2;
	return a;
}

int getbit(int x, int n) {
	return !!(x & (int)pow(2, n - 1));
}

int main() {
	int m;
	scanf("%d", &m);
	int a[4094], i;
	rep(i, m) scanf("%d", &a[i]);
	
	int j, k, l;
	rep(i, m) rep(l, 12) rep(j, pow(2, l)) {
		int t = 0, ans[11];
		rep(k, l) {
			ans[k] = getbit(j, k + 1);
			t = follow(t, ans[k]);
		}
		if (t == a[i]) {
			rep(k, l) printf("%c", ans[k] == left ? 'L' : 'R');
			printf("\n");
			break;
		}
	}

	return 0;
}