#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;

string solve(int n){
    string ret="";
    while(n!=0){
        if((n-1)%2)  ret.push_back('R');
        else ret.push_back('L');
        n=(n-1)/2;
    }
    reverse(ret.begin(),ret.end());
    return ret;
}

int main(void){
    int m; cin>>m;
    vector<int> a(m);
    vector<string> ans(m);
    for(int i=0;i<m;i++){
        cin>>a[i];
        ans[i]=solve(a[i]);
        
    }
    for(int i=0;i<m;i++){
        cout<<ans[i]<<endl;
    }
}