#include <cstdio>
#include <algorithm>
#include <iostream>
#include <vector>

using namespace std;
int main(void){

  string s;
  cin>>s;
  if((s.length()%2==0)^(s[0]==s[s.length()-1])) cout<<"Second\n";
  else cout<<"First\n";
  return 0;
}