#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
    int n;cin>>n;
    vector<char> a;
    for(int i = 0; n > i; i++){
        int z;cin>>z;z++;
        while(z/2){
            if(z%2)a.push_back('R');
            else a.push_back('L');
        }
        reverse(a.begin(),a.end());
        for(int i = 0; a.size() > i; i++){
            cout << a[i];
        }
        cout << endl;
        
        a.clear();
    }
    
}