#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
typedef long long ll;
#define ITR(i,c) for(auto i=begin(c);i!=end(c);i++)
#define FOR(i,a,n) for(int i=a;i<(int)(n);i++)
#define FORR(x,arr) for(auto &x:arr)
#define REP(i,n) FOR(i,0,n)
#define ALL(c) begin(c),end(c)
#define GET_MAX(c) (*std::max_element(ALL(c)))
#define GET_MIN(c) (*std::min_element(ALL(c)))
#define PB push_back
#define MP make_pair
const int DX[4]={0,1,0,-1}, DY[4]={-1,0,1,0};
const int INF = 1e9;

int main(int argc, char const *argv[]) {
    int m;
    cin >> m;
    REP(i,m) {
        int a;
        cin >> a;
        string s="";
        for(int j=a; j!=0; ) {
            if(j%2==0) {
                s.PB('R');
            }
            else {
                s.PB('L');
            }
            j--;
            j=j/2;
        }
        reverse(ALL(s));
        cout << s << endl;
    }
    return 0;
}