#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll T,n;
int main(){
	cin>>T;
	while(T--){
		cin>>n;
		n++;
		vector<char>a;
		while(n!=1){
//			cout<<n<<endl;
			if(n&1)a.push_back('R');
			else a.push_back('L');
			n>>=1;
		}
		for(ll i=a.size()-1;i>=0;i--)cout<<a[i];
		cout<<endl;
	}
}
/*
1 2 L  10
2 3 R  11
3 4 LL 100
4 5 LR 101
5 6 RL 110
6 7 RR 111
7 8 LLL 1000
8 9 LLR 1001
...
21 22 LRRL 10110
*/