#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define REP(i,n) for(ll i = 0; i < (n); ++i)
#define ALL(c) (c).begin(), (c).end()

int main() {
	cin.tie(0);
	ios_base::sync_with_stdio(false);
	ll m; cin >> m;
	REP(i, m) {
		ll a; cin >> a;
		string s;
		for (; a != 0; a = (a - 1) / 2) s += a % 2 == 0 ? "R" : "L";
		reverse(ALL(s));
		cout << s << endl;
	}
	return 0;
}