import sys
from os import path
if __name__ == '__main__':
sys.stdout = open('output.txt', 'w')
sys.stdin = open('input.txt', 'r')
door = sys.stdin.readline().strip()
rail = int(sys.stdin.readline())
if door == "back":
rail = (rail)%2+1
if rail == 1:
sys.stdout.write('L')
else:
sys.stdout.write('R')
#include<bits/stdc++.h>
using namespace std;
int main()
{
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
string s;
int alu;
cin>>s>>alu;
if(s=="front")
{
if(alu==1) cout<<"L";
else cout<<"R";
}
else
{
if(alu==1) cout<<"R";
else cout<<"L";
}
}
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