#include<iostream>
#include<string>
using namespace std;

int main(){
	string s; cin >> s;
	cout << (s[0] == s[s.size() - 1] ? (s.size() & 1 ?  "Second\n" : "First\n") : (s.size() & 1 ? "First\n" : "Second\n"));
	return 0;
}