#include<bits/stdc++.h>
#define int long long
using namespace std;
void sol(){
	int n,c;
	cin>>n;
	n++;
	while(n>1){
		if(n&1) cout<<"L";
		else cout<<"R";
		n>>=1;
	}cout<<endl;
}
signed main(){
//	freopen(".in","r",stdin);
//	freopen(".out","w",stdout); 
	int T;
	cin>>T;
	while(T--) sol();
}