#include<bits/stdc++.h>
using namespace std;
int main (){
string hajar; int ina;
cin >> hajar >> ina;
if(hajar=="front"){
if (ina==1)cout << "L\n";
else cout << "R\n";
}
else {
if (ina==1)cout << "R\n";
else cout << "L\n";
}
}
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