#include "bits/stdc++.h"
using namespace std;
long long mod=1e9+7;

int main(){
  string s;
  cin>>s;
  if((s.size()%2==1&&s[0]!=s[s.size()-1])||(s.size()%2==0&&s[0]==s[s.size()-1])){
    cout<<"First"<<endl;
  }else{
    cout<<"Second"<<endl;
  }
}
