#include <bits/stdc++.h>
using namespace std;

signed main(){
  int m;cin>>m;
  while(m--){
    int a;cin>>a;
    string res;
    while(a){
      res+=(a&1?"L":"R");
      a=(a-1)/2;
    }
    reverse(res.begin(),res.end());
    cout<<res<<endl;
  }
}