#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
#include <math.h>
#include <string.h>
using namespace std;

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